Dental floss

Abstract

The application provides a dental floss. The dental floss comprises a handle, a head and a floss. The handle is used for holding. The head is connected with the handle, and the head is provided with a mounting groove and an open end communicated with the mounting groove. The mounting groove comprises a bottom wall and two side walls connected with the bottom wall. The floss is arranged at the open end, and opposite ends of the floss are connected with the two side walls respectively. The floss comprises two sub-departments. The sub-departments are in a flat sheet structure. The width of the sub-departments is greater than the thickness and less than the length. In the direction away from the bottom wall, the sub-departments comprise opposite first ends and second ends. The second ends of the two sub-departments are at least partially connected. The first ends of the two sub-departments are at least partially separated. In the application, the sub-departments of the floss are in a flat sheet structure. Thus, compared with the sub-departments in a thin wire structure, the contact area between the floss and the teeth can be increased, the floss can take out food residues and dirt when the floss is taken out from the tooth gap, and the cleaning effect is improved.

Description

Technical Field

[0001] This application relates to the field of oral care technology, specifically to a dental floss. Background Technology

[0002] Dental floss, such as floss sticks, effectively removes plaque and debris from between teeth and on the tooth surface through friction between the floss and teeth, maintaining dental cleanliness and health. In related technologies, dental floss includes a handle and a floss section connected to the handle, with the floss section containing the floss. Generally, the floss has a thin structure (a circular cross-section) to facilitate cleaning between teeth. However, in some situations, such as when the gaps between teeth are wide, the small contact area between the thin floss and the teeth makes it difficult for the floss to effectively clean the gaps, affecting the cleaning effect. Utility Model Content

[0003] This application provides a dental floss to solve at least one of the technical problems mentioned above.

[0004] The dental floss of this application includes a handle, a head, and a floss. The handle is used for gripping. The head is connected to the handle and has a mounting groove and an open end communicating with the mounting groove. The mounting groove includes a bottom wall and two side walls connected to the bottom wall. The floss is disposed at the open end, and the opposite ends of the floss are respectively connected to the two side walls. The floss includes two sub-sections, each sub-section having a flat, sheet-like structure. The width of each sub-section is greater than its thickness and less than its length. In the direction away from the bottom wall, each sub-section includes an opposite first end and a second end. The second ends of the two sub-sections are at least partially connected, and the first ends of the two sub-sections are at least partially separated.

[0005] In the dental floss of this embodiment, the floss includes two sub-sections, each sub-section being flat and sheet-like. The width of the sub-section is greater than its thickness but less than its length. This increases the contact area between the floss and the teeth compared to a thin, thread-like structure (with a circular cross-section), facilitating the removal of food debris and other dirt from between the teeth and improving cleaning effectiveness. Furthermore, the second ends of the two sub-sections are at least partially connected, while the first ends are at least partially separated. Thus, when the floss enters between the teeth, the two sub-sections tend to converge, facilitating insertion. When the floss is pulled out of the teeth, the two sub-sections deform under friction and tend to expand and separate, forming a net-like structure that increases the contact area with dirt, thereby better removing dirt from between the teeth and improving cleaning effectiveness.

[0006] In some embodiments, the first ends of the two sub-parts together form a gap opening.

[0007] This allows the two sub-parts to separate and expand under the friction with the teeth, forming a net-like structure. This increases the contact area between the wire and the teeth, and also makes it easier to remove food residue and other dirt when the wire is taken out of the teeth, thus improving the cleaning effect.

[0008] In some embodiments, the opposite ends of the wire are respectively connected to the two sidewalls, and the gap opening faces the bottom wall.

[0009] In this way, during dental floss use, the floss can be positioned between the two ends of the first part and the gap to be cleaned, with the two ends converging. This reduces the contact area between the floss and the teeth when it enters the gap, ensuring the floss can smoothly penetrate and function properly. Simultaneously, the inward-facing opening of the gap allows the floss to form a net-like structure when pulled out, further enhancing its cleaning effectiveness.

[0010] In some embodiments, the wire has a V-shaped or Y-shaped cross-section in a cross-section perpendicular to the direction of the wire's length extension.

[0011] Specifically, when the floss has a V-shaped cross-section, the gap opening is larger when the floss deforms under stress, thus increasing the contact area between the floss and the teeth. This makes it easier to remove dirt when the floss is removed from between the teeth, improving cleaning effectiveness. When the floss has a Y-shaped cross-section, the gap opening is slightly smaller when the floss deforms under stress, making it easier for the floss to enter between the teeth and ensuring proper use of the dental floss.

[0012] In some embodiments, the distance between the two sub-parts gradually increases in the direction toward the bottom wall. This results in a gradually decreasing distance between the sub-parts farther from the bottom wall, which facilitates the insertion of the floss into the tooth gap, while the larger distance between the sub-parts toward the bottom wall increases the friction with the tooth gap, thereby facilitating separation and expansion of the floss when it is pulled out of the tooth gap, and improving the cleaning effect of the dental floss.

[0013] In some embodiments, the gap opening at least partially increases towards the middle from the connection end between the wire and the head. That is, the size of the gap opening first increases and then decreases along the length of the wire. This ensures that the wire can form a net-like structure that splits in the middle and contracts at both ends when deformed under stress, facilitating the removal of dirt when the wire is taken out of the gap, thus improving the cleaning effect.

[0014] In some embodiments, the wire is folded to form two sub-parts. That is, the wire can be a single-piece structure, and the two sub-parts are formed by folding it in half. In the case where the wire is folded to form two sub-parts, the fold line can be formed by the second ends of the two sub-parts joining together. Compared to a non-folded structure (single-layer structure), the folding of the wire to form two sub-parts, i.e., a folded structure, allows the wire to fit more closely to the teeth after being inserted into and deformed, thereby effectively removing dirt from the gaps between the teeth.

[0015] In some embodiments, the width of the wire sub-section is [0.5 mm, 3.0 mm].

[0016] Thus, compared to related technologies, the sub-section is larger in size, which increases the contact area between the sub-section and the teeth, ensuring that the wire can effectively clean the gaps between the teeth.

[0017] In some embodiments, the two sub-sections are of equal width. That is, the two sub-sections formed by folding the wire in half are of equal width, thereby making the wire more aesthetically pleasing and reducing visual defects. At the same time, the two sub-sections can fit together to facilitate insertion into the tooth gaps.

[0018] In some implementations, the widths of the two sub-parts are not equal.

[0019] In some embodiments, in the direction away from the bottom wall, the sub-part further includes a first sub-region and a second sub-region located between the first end and the second end. The first sub-region is closer to the bottom wall than the second sub-region, the second sub-regions of the two sub-parts are conjoined, and the first sub-regions of the two sub-parts are not conjoined.

[0020] Specifically, from the first end to the second end, the first and second sub-sections are arranged sequentially and connected. The second sub-sections of the two sub-sections are connected, meaning they can be joined together by adhesive or heat fusion to form a single unit, and the second sub-sections of the two sub-sections will not separate. The first sub-sections of the two sub-sections are not connected, meaning they are not connected and can be separated from each other. This design prevents the two sub-sections from completely separating during floss insertion into the gaps between teeth, ensuring proper floss use. Furthermore, when the floss is in use, the two first sub-sections deform and separate under friction with the gaps between teeth, forming a net-like structure that facilitates the removal of dirt when the floss is taken out of the gaps, improving cleaning effectiveness.

[0021] In some embodiments, in the direction away from the bottom wall, the sub-part further includes a first sub-region and a second sub-region located between the first end and the second end. The junction of the first sub-region and the second sub-region of one sub-part is connected to the junction of the first sub-region and the second sub-region of another sub-part, and the first sub-regions and the second sub-regions of the two sub-parts are not connected.

[0022] Specifically, in some embodiments, the first junction (the junction of the first and second sub-regions of one of the sub-parts) and the second junction (the junction of the first and second sub-regions of another sub-part) can be connected by adhesive bonding or heat fusion to form a whole, thereby achieving connection between the two sub-parts. This prevents the two sub-parts from completely separating during the insertion of the floss into the gaps between teeth, making it difficult for the floss to penetrate, and ensuring normal use of the dental floss. The first and second sub-regions of the two sub-parts are not connected; that is, there is no connection between the first and second sub-regions of the two sub-parts, and the first and second sub-regions of the two sub-parts can be separated from each other. Thus, when the dental floss is used, both the first and second sub-regions can deform and separate under friction, forming a net-like structure at both ends of the floss. This further increases the contact area between the floss and the teeth, facilitating the removal of dirt when the floss is taken out of the gaps, improving cleaning effectiveness.

[0023] In some implementations, the width of the first sub-region is the same as the width of the second sub-region. Thus, the cross-sectional shape of the wire cut by a plane perpendicular to the wire's extension direction can be approximately symmetrical X-shaped.

[0024] In some implementations, the widths of the first sub-region and the second sub-region are different. Thus, the cross-sectional shape of the wire cut by a plane perpendicular to the wire's extension direction can be approximately asymmetrical X-shaped.

[0025] In some embodiments, the wire is a one-piece structure. That is, the wire is a monolithic structure formed by integral molding. In this case, the two sub-parts are connected to each other. For example, the first ends of the two sub-parts are connected, but the second ends of the two sub-parts are not connected. This reduces the number of dental floss parts, facilitates production and processing, and helps improve processing efficiency.

[0026] In some embodiments, the floss has a split structure. In this case, the two sub-sections can be two different structures. When the dental floss is not in use, i.e., when the floss is not deformed, the two sub-sections can be stacked, with an approximate gap between them, and the first and second ends of each sub-section are not connected. This facilitates the floss's insertion into the gaps between teeth, ensuring proper use of the dental floss.

[0027] In some embodiments, the wire includes a body portion and a textured portion, the textured portion extending protruding from the outer surface of the body portion in a direction away from the body portion.

[0028] Thus, compared to smooth filaments, that is, compared to filaments without texture on the main body, the textured part allows the filament to carry more fragrance and functional ingredients (such as fluoride, antibacterial agents, etc.), thereby improving the cleaning effect of the filament on teeth.

[0029] In some embodiments, the wires comprise at least two wires, which are spaced apart at the open end. This allows the wires to cover a larger area, resulting in better cleaning performance.

[0030] In some embodiments, at least two of the said filaments extend in parallel directions. Thus, during dental floss use, at least two filaments can enter the interdental space separately and sequentially. Compared to at least two filaments whose extension directions are not parallel, the ease with which at least two filaments enter the interdental space is the same, thereby improving the user experience and ensuring the proper use of the dental floss.

[0031] In some embodiments, at least two of the flosses have the same structure. That is, at least two flosses have the same shape, thickness, and texture. This improves the uniformity of the dental floss's appearance and ensures a consistent user experience without requiring users to adapt to different floss types.

[0032] In other embodiments, at least two of the filaments have different structures. This enables differentiated cleaning, effectively addressing complex oral environments and improving cleaning results. For example, when the filaments consist of two parts, one filament can be a one-piece structure, i.e., the filament can be a folded filament, with the filament folded in half to form two sub-parts, and the other filament can be a split structure, i.e., the filament can be formed by stacking two split sub-parts.

[0033] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0034] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0035] Figure 1 This is a three-dimensional structural diagram of dental floss according to some embodiments of this application;

[0036] Figure 2 This is a three-dimensional structural schematic diagram of dental floss according to other embodiments of this application;

[0037] Figure 3 yes Figure 1 The diagram shows the structure of the dental floss after deformation.

[0038] Figure 4 yes Figure 2 The diagram shows the structure of the dental floss after deformation.

[0039] Explanation of key component symbols:

[0040] 100 dental floss; X is the first direction; Z is the extension direction;

[0041] 10 Handle; 30 Head, 31 Mounting slot, 311 Bottom wall, 313 Side wall, 33 Open end, 35 Loading part, 37 Connecting part; 50 Wire, 51 Sub-part, 511 First end, 513 Second end, 515 Gap opening; 70 Toothpick tip. Detailed Implementation

[0042] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.

[0044] Dental floss, such as floss sticks, effectively removes plaque and debris from between teeth and on the tooth surface through friction between the floss and teeth, maintaining dental cleanliness and health. In related technologies, dental floss includes a handle and a floss section connected to the handle, with the floss section containing the floss. Generally, the floss has a thin structure (a circular cross-section) to facilitate cleaning between teeth. However, in some situations, such as when the gaps between teeth are wide, the small contact area between the thin floss and teeth makes it difficult for the floss to effectively clean the gaps, affecting the cleaning effect. To address this issue, please refer to [link to relevant documentation]. Figure 1 or Figure 2 This application provides a dental floss 100.

[0045] Please see Figure 1 or Figure 2 The dental floss 100 of this application includes a handle 10, a head 30, and a floss 50. The handle 10 is used for gripping. The head 30 is connected to the handle 10 and has a mounting groove 31 and an open end 33 communicating with the mounting groove 31. The mounting groove 31 includes a bottom wall 311 and two side walls 313 connected to the bottom wall 311. The floss 50 is disposed at the open end 33 and its opposite ends are respectively connected to the two side walls 313. The floss 50 includes two sub-parts 51, which are flat and flat. The width of the sub-parts 51 is greater than the thickness of the sub-parts 51 and less than the length of the sub-parts 51. In the direction away from the bottom wall, the sub-parts 51 include opposite first ends 511 and second ends 513. The second ends 513 of the two sub-parts 51 are at least partially connected, and the first ends 511 of the two sub-parts 51 are at least partially separated.

[0046] It is understood that dental floss 100 includes, but is not limited to, products such as floss picks, toothpicks, and interdental brushes. This application embodiment uses floss picks as an example for illustration. A floss pick is a product that can conveniently remove dirt from between teeth and on the tooth surface through the contact friction between the floss 50 and the teeth, maintaining the cleanliness and health of the teeth.

[0047] The handle 10 is a structure in the dental floss 100 used by the user for gripping. The handle 10 may be made of metallic or non-metallic materials. For example, the handle 10 may be made of at least one of polypropylene, polyethylene terephthalate, polystyrene, resin, etc. The shape of the handle 10 may be straight, curved, or irregular. In some embodiments of this application, the outer surface of the handle 10 is provided with anti-slip protrusions, including but not limited to striped protrusions, grid protrusions, and dotted protrusions. The anti-slip protrusions increase the friction of the outer surface of the handle 10, improve the user's grip on the handle 10, increase the grip firmness, and effectively prevent cleaning damage caused by unstable grip.

[0048] The head 30 is a structure in the dental floss 100 used to hold the floss 50. The material of the head 30 may be the same as or different from that of the handle 10. For example, both the head 30 and the handle 10 may be made of polypropylene; or, the head 30 may be made of polypropylene and the handle 10 may be made of resin.

[0049] In some embodiments, the handle 10 and the head 30 are an integral structure, that is, the handle 10 and the head 30 are an integral structure made by integral molding. This can improve the bonding strength between the handle 10 and the head 30, reduce the possibility of the handle 10 and the head 30 separating during the use of dental floss 100, and ensure the normal use of dental floss 100.

[0050] In other embodiments, the handle 10 and the head 30 are separate structures, that is, the handle 10 and the head 30 are two different structures, and the handle 10 and the head 30 can be connected together by a detachable connection method or a non-detachable connection method. Among them, the detachable connection method includes, but is not limited to, snap-fit ​​connection or threaded connection; the non-detachable connection method includes, but is not limited to, bonding or welding.

[0051] In some embodiments of this application, the head 30 includes a loading portion 35 and two connecting portions 37. The two connecting portions 37 are spaced apart at opposite ends of the loading portion 35. The loading portion 35 is connected to the handle 10, and the opposite ends of the wire 50 are respectively connected to the two connecting portions 37. The loading portion 35 and the two connecting portions 37 together form a mounting groove 31. The loading portion 35 can serve as the bottom wall 311 of the mounting groove 31, and the two connecting portions 37 can serve as the two side walls 313 of the mounting groove 31.

[0052] It should be noted that in some embodiments, the mounting groove 31 may be approximately U-shaped or V-shaped. In this case, the loading part 35 and the two connecting parts 37 can together form a U-shaped or V-shaped form to facilitate the fixing of the opposite ends of the wire 50. It is understood that this application does not limit the shape of the mounting groove 31; that is, the shape of the mounting groove 31 may also include other forms besides U-shaped and V-shaped, as long as it can fix the wire 50 and has an open end 33. Examples will not be given here.

[0053] In some embodiments of this application, the distance between the two sub-parts 51 gradually increases in the direction toward the bottom wall 313. This results in a gradual decrease in the distance between the sub-parts 51 away from the bottom wall 313, which facilitates the insertion of the floss 50 into the gaps between the teeth. Meanwhile, the larger distance between the sub-parts 51 toward the bottom wall 313 increases the friction with the gaps between the teeth, which facilitates the separation and expansion of the floss 50 when it is pulled out of the gaps, thereby improving the cleaning effect of the dental floss 100.

[0054] The floss 50 is a component of the dental floss 100 that cleans dirt between teeth or on the tooth surface. The floss 50 includes two sub-sections 51, each sub-section 51 being a flat sheet. That is, the thickness of the sub-section 51 can be greater than its length and width, and its shape is flat. The cross-sectional shape of the sub-section 51 can be rectangular or approximately rectangular. This design facilitates the insertion of the floss 50 into the gaps between teeth while increasing the contact area between the floss 50 and the teeth, ensuring effective cleaning of the gaps, optimizing the cleaning effect of the dental floss 100, and improving the user experience.

[0055] For example, the dental floss 100 can be used as follows: the user holds the dental floss 100 with the handle 10 and the open end 33 facing the gap to be cleaned, so that the floss 50 is opposite to the gap to be cleaned; then, the user applies force to the dental floss 100 with the handle 10 to press the floss 50 into the gap to be cleaned; finally, the user applies force to the dental floss 100 with the handle 10 to remove the floss 50. During the removal process, the floss 50 can remove dirt from the gap, thereby cleaning the dirt (such as food residue, dental plaque, etc.) in the gap.

[0056] In some embodiments, the floss 50 has a split structure. In this case, the two sub-sections 51 can be two different structures. Specifically, when the dental floss 100 is not in use, that is, when the floss 50 is not deformed, the two sub-sections 51 can be stacked, with an approximately zero gap between them, and the first ends 511 and the second ends 513 of the two sub-sections 51 are not connected. This facilitates the insertion of the floss 50 into the gaps between teeth, ensuring the normal use of the dental floss 100.

[0057] In other embodiments, the wire 50 is a one-piece structure. That is, the wire 50 is a monolithic structure formed by one-piece molding. In this case, the wire 50 can be folded to form two sub-parts 51. That is, the first ends 511 of the two sub-parts 51 are connected, while the second ends 513 of the two sub-parts 51 are not connected. This reduces the number of parts in the dental floss 100, facilitates production and processing, and helps improve processing efficiency.

[0058] In this embodiment, the wire 50 is folded to form two sub-parts 51. That is, the wire 50 can be a single-piece structure, and the two sub-parts 51 are formed by folding. When the wire 50 is folded to form two sub-parts 51, the fold line of the wire 50 can be formed by connecting the second ends 513 of the two sub-parts 51. Compared to a non-folded structure (single-layer structure), the wire 50 is folded to form two sub-parts 51, i.e., a folded structure, allowing the wire 50 to fit more closely to the teeth after being inserted into and deformed, thereby effectively removing dirt from the gaps between the teeth.

[0059] In some embodiments of this application, in the direction away from the bottom wall 311, the sub-part 51 includes opposing first ends 511 and second ends 513, the second ends 513 of the two sub-parts 51 are at least partially connected, and the first ends 511 of the two sub-parts 51 are at least partially separated.

[0060] Specifically, when the dental floss 100 is not in use, that is, when the floss 50 is not deformed by force, in the direction away from the bottom wall 311, that is, in the direction X from the bottom wall 311 to the opening end 33, the sub-part 51 includes opposing first ends 511 and second ends 513. The second ends 513 of the two sub-parts 51 are at least partially connected, that is, at least portions of the second ends 513 of the two sub-parts 51 can be connected by bonding or heat fusion to form a whole, and the second ends 513 of the two sub-parts 51 will not separate; the first ends 511 of the two sub-parts 51 are at least partially separated, that is, at least portions of the first ends 511 of the two sub-parts 51 are not connected. This design avoids the two sub-parts 51 from completely separating during the insertion of the floss 50 into the gaps between teeth, thus ensuring the normal use of the dental floss 100. On the other hand, when the dental floss 100 is in use, at least a portion of the first ends 511 of the two sub-parts 51 can deform and separate from each other under friction, thereby forming a net-like structure with the floss 50. This facilitates the removal of dirt when the floss 50 is taken out of the gaps between teeth, improving the cleaning effect.

[0061] In some embodiments, along the extension direction X of the wire length, the sub-section 51 includes a first section, a second section, and a third section. The first and third sections are respectively connected to two sidewalls 313. The second section is located within the mounting groove 31 and connected between the first and third sections. In the direction away from the bottom wall 311, the second section includes opposing first and second ends, with the first ends of the second sections of the two sub-sections separated. Thus, when the dental floss 100 is used, the first ends of the second sections of the two sub-sections tend to separate and expand, which can better remove dirt from between the teeth. Specifically, the first end 511 of the sub-section 51 includes the first end of the second section, and the second end 513 of the sub-section 51 includes the second end of the second section.

[0062] It should be noted that, in some embodiments, the first region and the third region are respectively embedded within two sidewalls 313. In the direction away from the bottom wall 311, the first region includes opposing first and second ends, and the third region includes opposing first and second ends. The first ends of the first regions of the two sub-parts are connected, and the first ends of the third regions of the two sub-parts are connected. Specifically, the first end 511 of the sub-part 51 includes the first end of the first region and the first end of the third region, and the second end 513 of the sub-part 51 includes the second end of the first region and the second end of the third region.

[0063] It is understood that in other embodiments, the first end of the second region of one sub-part 51 corresponding to the region connected to the first region is connected to the first end of the second region of another sub-part 51 corresponding to the region connected to the first region; and / or, the first end of the second region of one sub-part 51 corresponding to the region connected to the third region is connected to the first end of the second region of another sub-part 51 corresponding to the region connected to the third region. That is, the second regions of the two sub-parts 51 are separated only by the first end of the middle region.

[0064] In some embodiments of this application, the wire 50 is made of thermoplastic elastomer (TPE).

[0065] This design gives the floss 50 better softness and elasticity, and a lower coefficient of dynamic friction. This not only reduces the possibility of gum damage during use, but also facilitates insertion into interdental spaces. For example, the floss 50 can thin with the applied force to better fit between teeth, improving its usability and making it easier for users with narrow interdental spaces to use. Furthermore, the superior softness of the floss 50 also makes it easier to fold.

[0066] In addition, the wire 50 is made of thermoplastic elastomer, which gives it high strength, excellent fatigue resistance and creep resistance, thereby improving its load-bearing capacity, reducing the possibility of damage, and enhancing cleaning performance. Furthermore, surface roughening treatment can be applied to the wire 50 to further increase its cleaning ability.

[0067] Furthermore, in some embodiments, the wire 50 can be made of thermoplastic polyester elastomer (TPEE), which offers good filament strength and flexibility. Specifically, the thermoplastic polyester elastomer is a polyester hard segment comprising PBT (polybutylene terephthalate) and aliphatic polyester or polyether soft segments. Linear block copolymers possess excellent rubber elasticity and the ease of processing inherent in thermoplastics, allowing for adjustable softness and hardness, and design freedom.

[0068] It is understood that in other embodiments, the wire 50 may also be formed of other elastomeric materials. Specifically, the wire 50 may be made of highly flexible natural rubber or synthetic rubber, such as ethylene propylene diene monomer rubber, butyl rubber, polyurethane rubber, silicone rubber, copolyester, polyamide, etc.

[0069] In the dental floss 100 of this application embodiment, the floss 50 includes two sub-parts 51, which are flat and sheet-like. Compared to the sub-parts 51 having a thin thread structure (the cross-section of the sub-parts 51 is circular), the floss 50 can carry more fragrance and functional ingredients, thus improving the cleaning effect. On the other hand, it can increase the contact area between the floss 50 and the teeth, making it easier to remove food residue and other dirt when the floss is removed from between the teeth, thus improving the cleaning effect.

[0070] In addition, the second ends 513 of the two sub-parts 51 are at least partially connected, and the first ends 511 of the two sub-parts 51 are at least partially separated. Thus, when the wire 50 is inserted into the tooth gap, the two sub-parts 51 tend to converge, which facilitates the insertion of the wire 50 into the tooth gap. When the wire 50 is pulled out of the tooth gap, the two sub-parts 51 can deform under the friction with the tooth gap and tend to separate and expand, thereby forming a net-like structure of the wire 50, increasing the contact area with dirt, and thus better removing dirt from the tooth gap and improving the cleaning effect.

[0071] The dental floss 100 will be further explained below with reference to the attached diagram.

[0072] Please see Figure 1 and Figure 3 ,or Figure 2 and Figure 4 In some embodiments, the first ends 511 of the two sub-parts 51 together form a gap opening 515.

[0073] This allows the two sub-parts 51 to separate and expand under friction with the teeth, forming a net-like structure with the wire 50. This increases the contact area between the wire 50 and the teeth, and also facilitates the removal of food residue and other dirt when the wire 50 is taken out of the gap, improving cleaning effectiveness. For example, when the wire 50 moves in the gap, the two sub-parts 51 can deform under friction, increasing the gap opening 515. At this time, the wire 50 can form a net-like structure that separates in the middle and contracts at both ends, facilitating the removal of dirt when the wire 50 is taken out of the gap, thus improving cleaning effectiveness.

[0074] It should be noted that in some embodiments, when the dental floss 100 is not used, that is, when the floss 50 is not deformed by force, the first ends 511 of the two sub-parts 51 can contact each other, and the size of the gap opening 515 formed by the first ends 511 of the two sub-parts 51 is approximately 0 (e.g., Figure 1 or Figure 2 (As shown); When dental floss 100 is used, the two sub-parts 51 deform, causing the gap opening 515 to increase (as shown). Figure 3 or Figure 4 (As shown), this makes it easier for the wire 50 to carry out the dirt from the gaps between the teeth.

[0075] Furthermore, in some embodiments, the gap opening 515 faces the bottom wall 311. Thus, during the use of the dental floss 100, the floss 50 can be positioned relative to the interdental space to be cleaned through the second end 513 of the sub-section 51, thereby reducing the contact area between the floss 50 and the teeth when it enters the interdental space, ensuring that the floss 50 can smoothly enter the interdental space and guaranteeing the normal use of the dental floss 100. Simultaneously, the gap opening 515 facing inwards facilitates the formation of a net-like structure when the floss 50 is removed, which helps improve the cleaning effect of the dental floss 100.

[0076] In some embodiments, the wire 50 has a V-shaped or Y-shaped cross-section in a cross-section perpendicular to the Z-direction of the wire 50's length extension.

[0077] Specifically, when the floss 50 has a V-shaped cross-section, the gap opening 515 is larger when the floss 50 is deformed under force, thereby further increasing the contact area between the floss 50 and the teeth. This facilitates the removal of dirt when the floss 50 is removed from the gap between the teeth, improving the cleaning effect. When the floss 50 has a Y-shaped cross-section, the gap opening 515 is slightly smaller when the floss 50 is deformed under force, making it easier for the floss 50 to enter the gap between the teeth and ensuring the normal use of the dental floss 100.

[0078] In some embodiments, the gap opening 515 increases at least partially from the connection end of the wire 50 and the head 30 toward the middle. That is, in the Z-direction of the wire 50's length extension, the size of the gap opening 515 first increases and then decreases. This ensures that the wire 50 can form a net-like structure that splits in the middle and contracts at both ends when deformed under force, making it easier to remove dirt when the wire 50 is taken out of the gap, thus improving the cleaning effect.

[0079] Please see Figure 1 or Figure 2 In some embodiments, the width of the sub-part 51 of the wire 50 is [0.5mm, 3.0mm]. That is, in the direction X from the bottom wall 311 to the opening end 33, the size of the sub-part 51 is [0.5mm, 3.0mm]. It should be noted that in some embodiments, the width of the sub-part 51 can be any one of 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, and 3.0mm, or any value between any two of these values. It is understood that the size of the sub-part 51 in this embodiment is the size of the sub-part 51 before deformation.

[0080] Thus, compared to related technologies, the size of the sub-section 51 is larger, which on the one hand increases the contact area between the sub-section 51 and the teeth, ensuring that the sub-section 51 can effectively clean the gaps between the teeth; on the other hand, it allows the sub-section 51 to carry more fragrance and functional ingredients, further improving the cleaning effect.

[0081] Furthermore, regarding the sub-part 51 in this embodiment, if the width of the sub-part 51 is less than 0.5 mm, the size of the sub-part 51 is too small, resulting in a small contact area between the sub-part 51 and the teeth, making it difficult for the sub-part 51 to effectively clean the interdental spaces. If the width of the sub-part 51 is greater than 3.0 mm, the size of the sub-part 51 is too large, resulting in greater friction between the sub-part 51 and the teeth when it extends into the interdental spaces, making it difficult for the floss 50 to extend into the interdental spaces and affecting the normal use of the dental floss 100. In this embodiment, the width of the sub-part 51 is [0.5 mm, 3.0 mm]. This appropriately increases the contact area between the sub-part 51 and the teeth, ensuring that the floss 50 can effectively clean the interdental spaces and improve the cleaning effect. On the other hand, it avoids the problem of excessive friction between the sub-part 51 and the teeth, which would make it difficult for the floss 50 to extend into the interdental spaces, thus ensuring the normal use of the dental floss 100.

[0082] In some embodiments, the two sub-parts 51 have equal widths. That is, the two sub-parts 51 formed by folding the wire 50 have equal widths, thereby making the wire 50 more aesthetically pleasing and reducing visual defects. At the same time, the two sub-parts 51 can fit together to facilitate insertion into the tooth gaps. In other embodiments, the two sub-parts 51 have unequal widths.

[0083] In some embodiments, in the direction away from the bottom wall 311, the sub-part 51 further includes a first sub-region and a second sub-region located between the first end 511 and the second end 513, with the first sub-regions of the two sub-parts 51 facing each other and the second sub-regions of the two sub-parts 51 facing each other. The first sub-region is closer to the bottom wall 311 than the second sub-region, the second sub-regions of the two sub-parts 51 are adjacent, and the first sub-regions of the two sub-parts 51 are not adjacent. It should be noted that in some embodiments, the width of the first sub-region and the width of the second sub-region may be the same or different.

[0084] Specifically, in some embodiments, the first sub-region and the second sub-region are arranged sequentially and connected in the direction from the first end 511 to the second end 513. The second sub-regions of the two sub-parts 51 are connected, meaning they can be joined together by adhesive bonding or heat fusion to form a single unit, and the second sub-regions of the two sub-parts 51 will not separate. The first sub-regions of the two sub-parts 51 are not connected, meaning there is no connection between the first sub-regions of the two sub-parts 51, and the first sub-regions of the two sub-parts 51 can be separated from each other. This avoids the two sub-parts 51 completely separating during the insertion of the floss 50 into the gaps between the teeth, preventing the floss 50 from being difficult to insert and ensuring the normal use of the dental floss 100. Furthermore, when the dental floss 100 is in use, the two first sub-regions can deform and separate under friction, thus forming a net-like structure, facilitating the removal of dirt when the floss 50 is taken out of the gaps, improving the cleaning effect. It is understood that in this embodiment, the cross-section of the wire 50 cut by a plane perpendicular to the extension direction Z of the wire 50 can be approximately Y-shaped.

[0085] In addition, compared to the two sub-sections 51 being connected only through the second end 513, that is, compared to the two sub-sections 51 having their first sub-sections and the two sub-sections 51 not being connected, the two sub-sections 51 having their second sub-sections connected and the two sub-sections 51 having their first sub-sections not being connected, can make the gap opening 515 formed after the wire 50 is deformed by force smaller, which makes it easier for the wire 50 to enter the tooth gap.

[0086] In some embodiments, the junction of the first and second sub-regions of one sub-part 51 (hereinafter referred to as the first junction) is connected to the junction of the first and second sub-regions of another sub-part 51 (the second junction), and the first sub-regions and the second sub-regions of the two sub-parts 51 are not connected. It should be noted that in this embodiment, the second ends 513 of the two sub-parts 51 are partially connected.

[0087] Specifically, in some embodiments, the first and second joints can be connected as a whole by bonding or heat fusion to achieve the connection between the two sub-parts 51. This avoids the two sub-parts 51 completely separating during the insertion of the floss 50 into the gap between teeth, preventing the floss 50 from being difficult to insert into the gap and ensuring the normal use of the dental floss 100. The first sub-regions and the second sub-regions of the two sub-parts 51 are not connected, that is, there is no connection between the first sub-regions and the second sub-regions of the two sub-parts 51, and the first sub-parts 51 and the second sub-regions of the two sub-parts 51 can be separated from each other. Thus, when the dental floss is used, both the first and second sub-regions can deform and separate from each other under friction, thereby forming a net-like structure at both ends of the floss 50, further increasing the contact area between the floss 50 and the teeth, making it easier to remove dirt when the floss 50 is removed from the gap between teeth, and improving the cleaning effect. It is understood that in this embodiment, the cross-section of the wire 50 cut by a plane perpendicular to the extension direction Z of the wire 50 can be approximately X-shaped.

[0088] In some embodiments, the width of the first sub-region and the width of the second sub-region are the same. Thus, the cross-sectional shape of the wire 50 cut by a plane perpendicular to the extension direction Z of the wire 50 can be approximately a symmetrical X-shape.

[0089] In other embodiments, the widths of the first sub-region and the second sub-region are different. Thus, the cross-sectional shape of the wire 50 cut by a plane perpendicular to the extension direction Z of the wire 50 can be approximately asymmetrical X-shaped.

[0090] Please see Figure 1 or Figure 2 In some embodiments, the dental floss 100 further includes a toothpick head 70, which and the head 30 are respectively connected to opposite ends of the handle 10. The toothpick head 70 includes a first end 511 and a second end 513. The first end 511 of the toothpick head 70 is connected to the handle 10. The cross-sectional area of ​​the toothpick head 70 gradually decreases in the direction from the first end 511 to the second end 513.

[0091] This allows the dental floss 100 to achieve multi-functional cleaning and improve cleaning effectiveness. For example, when encountering larger, more tightly packed dirt between teeth, such as when food debris is stuck between teeth, the dental floss 100 can first use the toothpick tip 70 to remove most of the dirt and loosen the remaining dirt, and then use the floss 50 to reach into the gap between teeth for cleaning. In this way, the floss 50 and the toothpick tip 70 work together to effectively remove dirt from between teeth, improving the cleaning effect of the dental floss 100 on the gaps between teeth.

[0092] In some embodiments, the toothpick head 70 and the handle 10 are an integral structure, that is, the handle 10 and the toothpick head 70 are an integral structure made by integral molding. In this case, the toothpick head 70 can be a structure formed by the end of the handle 10 (the end of the handle 10 that is not connected to the head 30) gradually tapering. This can improve the bonding strength between the handle 10 and the toothpick head 70, reduce the possibility of the handle 10 and the toothpick head 70 separating during the use of dental floss 100, and ensure the normal use of dental floss 100.

[0093] In other embodiments, the handle 10 and the toothpick head 70 are separate structures, that is, the handle 10 and the toothpick head 70 are two different structures, and the handle 10 and the toothpick head 70 can be connected together by a detachable connection method or a non-detachable connection method. Detachable connection methods include, but are not limited to, snap-fit ​​connections or threaded connections; non-detachable connection methods include, but are not limited to, adhesive or welding.

[0094] In some embodiments, the wire 50 includes a main body and a textured portion, the textured portion extending protruding from the outer surface of the main body in a direction away from the main body.

[0095] Thus, compared to a smooth filament 50, that is, compared to a body without textured sections and with a smooth outer surface, the textured sections allow the filament 50 to carry more fragrance and functional ingredients (such as fluoride, antibacterial agents, etc.), thereby improving the cleaning effect of the filament 50 on teeth.

[0096] Please see Figure 2 In some embodiments, the wire 50 includes at least two wires 50, which are spaced apart at the opening end 33. This allows the wires 50 to cover a larger area, which is beneficial for achieving a better cleaning effect. It is understood that the explanation of the wires 50 in the above embodiments also applies to the wires 50 in this embodiment, and will not be repeated here.

[0097] In some embodiments, the extension directions Z of at least two flosses 50 are parallel to each other. Thus, during the use of dental floss 100, at least two flosses 50 can enter the interdental space separately and sequentially. Compared to at least two flosses 50 whose extension directions Z are not parallel, the ease with which at least two flosses 50 enter the interdental space is the same, thereby improving the user experience and ensuring the normal use of dental floss 100.

[0098] In some embodiments, at least two wires 50 have the same structure. That is, at least two wires 50 have the same shape, thickness, and texture. This improves the appearance consistency of the dental floss 100 and ensures that users do not need to adapt to different wires, providing a consistent user experience.

[0099] In other embodiments, at least two threads 50 have different structures. This enables differentiated cleaning, effectively addressing complex oral environments and improving cleaning results. For example, when there are two threads 50, one thread 50 can be a one-piece structure, that is, the thread 50 can be a folded thread, with the thread 50 folded in half to form two sub-parts 51, and the other thread 50 can be a separate structure, that is, the thread 50 can be formed by stacking two separate sub-parts 51.

[0100] It is understood that in other embodiments, at least two wires 50 may have different structures, or at least one of the at least two wires 50 may be a folded wire, which is folded in half to form two sub-parts 51, or at least one of the at least two wires 50 may be a flat single-wire structure or other wires different from folded wires.

[0101] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A type of dental floss, characterized in that, include: Handle, the handle being used for gripping; and A head, connected to the handle, the head having a mounting groove and an open end communicating with the mounting groove, the mounting groove including a bottom wall and two side walls connected to the bottom wall; and, A wire, wherein the wire is disposed at the open end and the opposite ends of the wire are respectively connected to the two sidewalls, wherein the wire includes two sub-parts, the sub-parts are flat and sheet-like, and the width of the sub-parts is greater than the thickness of the sub-parts and less than the length of the sub-parts; In the direction away from the bottom wall, the sub-parts include opposing first and second ends, the second ends of the two sub-parts being at least partially connected, and the first ends of the two sub-parts being at least partially separated.

2. The dental floss according to claim 1, characterized in that, The first ends of the two sub-parts together form a gap opening.

3. The dental floss according to claim 2, characterized in that, The two ends of the wire are respectively connected to the two side walls, and the gap opening faces the bottom wall.

4. The dental floss according to claim 2, characterized in that, In a cross-section perpendicular to the direction of the wire's length extension, the wire has a V-shaped or Y-shaped cross-section; and / or, The distance between the two sub-parts gradually increases in the direction toward the bottom wall.

5. The dental floss according to claim 2, characterized in that, The gap opening at least partially increases from the connection end of the wire and the head towards the middle.

6. The dental floss according to claim 1, characterized in that, The wire is folded to form two sub-sections.

7. The dental floss according to claim 1, characterized in that, The width of the wire sub-section is [0.5mm, 3.0mm].

8. The dental floss according to claim 1, characterized in that, The two sub-parts have equal widths; or, The two sub-parts have unequal widths.

9. The dental floss according to claim 1, characterized in that, In the direction away from the bottom wall, the sub-part also includes a first sub-region and a second sub-region located between the first end and the second end; The first sub-region is closer to the bottom wall than the second sub-region. The second sub-regions of the two sub-regions are connected, while the first sub-regions of the two sub-regions are not connected.

10. The dental floss according to claim 1, characterized in that, In the direction away from the bottom wall, the sub-part also includes a first sub-region and a second sub-region located between the first end and the second end; The junction of the first and second sub-regions of one sub-part is connected to the junction of the first and second sub-regions of another sub-part, and the first sub-regions and second sub-regions of the two sub-parts are not connected.

11. The dental floss according to claim 10, characterized in that, The width of the first sub-region is the same as the width of the second sub-region; or, The width of the first sub-region is different from the width of the second sub-region.

12. The dental floss according to claim 1, characterized in that, The wire is a single-piece structure; or, The wire has a split structure.

13. The dental floss according to claim 1, characterized in that, The wire includes a main body and a textured portion, wherein the textured portion protrudes from the outer surface of the main body in a direction away from the main body.

14. The dental floss according to any one of claims 1-13, characterized in that, The wires include at least two wires, which are spaced apart at the open end.

15. The dental floss according to claim 14, characterized in that, At least two of the wires extend in parallel directions.

16. The dental floss according to claim 14, characterized in that, At least two of the wires have the same structure; or, At least two of the wires have different structures.

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