Gingiva-protecting antibacterial health-care dental floss roll preparation process

Abstract

The invention relates to the processing technical field of preparation of gingival-protecting antibacterial health-care dental floss, and discloses a preparation process of a gingival-protecting antibacterial health-care dental floss roll, which comprises the steps of raw material pretreatment, melt spinning, molten wax liquid spraying, suspension preparation, coating dipping and curing, and essence loading and surface modification. Through the preparation process, oral bacteria can be continuously inhibited, the gingiva-protecting and antibacterial health-care effects of the dental floss are improved, the resistance of the dental floss entering slits between teeth is remarkably reduced, and the smoothness of the dental floss in use is improved.

Description

Technical Field

[0001] This invention belongs to the field of processing technology for gum-protecting and antibacterial dental floss, specifically a process for preparing gum-protecting and antibacterial dental floss rolls. Background Technology

[0002] Dental floss rolls are dental floss products that are coiled into a spool and usually stored in a portable case. When using them, you can cut the floss to the desired length and use your hands to form a "C" shape to wrap around the sides of your teeth, cleaning food debris and plaque deep into the gaps between your teeth. They are especially good at cleaning hidden areas such as the back teeth.

[0003] The core function of dental floss rolls is to remove food debris and plaque from between teeth. However, existing regular dental floss relies on friction to remove debris and cannot chemically inhibit plaque regeneration. After cleaning, bacteria may multiply rapidly. Regular dental floss rarely contains antibacterial agents, so it cannot break down bacterial biofilms or neutralize acidic metabolites. Some fragrance-containing products only mask odors and have no actual bactericidal effect. Therefore, we propose a process for preparing gum-protecting, antibacterial, and health-promoting dental floss rolls. Summary of the Invention

[0004] The purpose of this invention is to provide a process for preparing dental floss rolls that protect gums and have antibacterial properties, in order to improve the gum-protecting and antibacterial health benefits of dental floss.

[0005] The technical solution adopted in this invention is as follows: A process for preparing gum-protecting, antibacterial, and health-promoting dental floss rolls, comprising the following steps: S1: Raw material pretreatment: The sodium fluoride-silica mixed powder and 840D-66 nylon particles are mechanically mixed at a ratio of 10-15wt% and processed by a high-speed mixer for 10 minutes to achieve uniform dispersion; S2: Melt spinning, the mixed particles are processed by twin-screw melt spinning process, heated to 260-280℃ to melt and then extruded into shape, the spinneret orifice diameter is controlled at 0.1-0.15mm, and then disinfected, dyed and dried to ensure the cleanliness of the monofilament fibers and the uniformity of dyeing; S3: Molten wax spraying. Microcrystalline wax and beeswax are mixed and heated to 65±2℃ to melt and form a composite lubricant. The molten wax is then evenly sprayed onto the surface of 840D-66 nylon thread using a high-pressure spraying device. S4: Suspension preparation: Sodium fluoride and silicon dioxide are dispersed in a mixed solvent of ethanol and water, and ultrasonically treated for 30 minutes to ensure uniform dispersion. Then, a mixture of molten microcrystalline wax and beeswax is added as a carrier to form a suspension. S5: Coating impregnation and curing. The suspension is placed in the impregnation tank, and then the nylon thread is continuously passed through the impregnation tank at a speed of 15m / min. The coating thickness is controlled to be 20-40μm, and then it is dried and cured by hot air at 80℃. S6: Fragrance loading and surface modification. Double peppermint oil fragrance and β-cyclodextrin are mixed and stirred at 40°C for 2 hours to form fragrance microcapsules. At this time, β-cyclodextrin encapsulates the double peppermint oil fragrance through hydrophobic cavities to form a stable molecular inclusion complex. Then, the microcapsules are uniformly attached to the surface of dental floss through electrostatic spraying.

[0006] In a preferred embodiment of the invention, the mixing ratio of the microcrystalline wax and the beeswax is 3:1.

[0007] In a preferred embodiment of the invention, the mixture of microcrystalline wax and beeswax is sprayed onto the nylon thread in an amount of 3-5 wt%.

[0008] In a preferred embodiment of the invention, the volume ratio of the ethanol and water mixed solvent is 3:7.

[0009] In a preferred embodiment of the invention, the pH of the suspension is 6.5-7.2 to prevent the hydrolysis of sodium fluoride.

[0010] In a preferred embodiment of the invention, the temperature of the suspension in the impregnation tank is controlled at 55°C-60°C.

[0011] In a preferred embodiment of the invention, the mass ratio of the dual peppermint oil flavoring to β-cyclodextrin is 1:3.

[0012] In a preferred embodiment of the invention, the voltage during electrostatic spraying of the fragrance microcapsules is 30 kV and the pressure is 0.3 MPa.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, by dispersing a mixture of sodium fluoride and silicon dioxide powder onto a nylon substrate and a suspension impregnation coating, a gradient release of fluoride ions is achieved, which continuously inhibits oral bacteria and improves the gum-protecting and antibacterial health benefits of dental floss.

[0014] 2. In this invention, microcrystalline wax and beeswax are mixed and melted and sprayed to form a uniform lubricating layer, which reduces the coefficient of friction, significantly reduces the resistance of dental floss entering the gaps between teeth, and improves the smoothness of dental floss during use.

[0015] 3. In this invention, β-cyclodextrin is used to encapsulate double peppermint oil flavorings through a hydrophobic cavity, forming a stable molecular inclusion complex. This slows down the evaporation rate of the flavorings, prolongs the sustained-release time, and ensures that the fresh feeling in the mouth lasts throughout the entire day. The encapsulated flavoring microcapsules can resist external factors such as saliva washing and temperature and humidity changes, reducing flavor loss and improving flavor persistence.

[0016] 4. In this invention, the sodium fluoride-silica suspension is ultrasonically treated for 30 minutes, combined with continuous impregnation at 15 m / min, and the coating thickness is controlled at 20-40 μm. This improves adhesion strength, reduces the risk of coating peeling during use, and hot air drying ensures rapid curing of the wax and antibacterial components. Furthermore, silica, as a carrier, enhances the dispersion stability of sodium fluoride, while its surface hydroxyl groups promote interfacial bonding with the nylon substrate, enhancing coating durability. This avoids the potential impact of residual solvents on oral safety and improves the gingival protection and antibacterial effects of dental floss. Attached Figure Description

[0017] Figure 1 This is a flowchart of the preparation process of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The following will combine Figure 1 The preparation process of a gingival-protecting, antibacterial dental floss roll according to an embodiment of the present invention will be described in detail. Example

[0020] Reference Figure 1 A process for preparing gum-protecting and antibacterial dental floss rolls is disclosed. The process steps are as follows: raw material pretreatment: sodium fluoride-silica mixed powder and 840D-66 nylon particles are mechanically mixed at a ratio of 10-15wt% and treated with a high-speed mixer for 10 minutes to achieve uniform dispersion; then melt spinning: the mixed particles are processed by a twin-screw melt spinning process, heated to 260-280℃ to melt and extruded, the spinneret orifice diameter is controlled at 0.1-0.15mm, and then disinfected, stained and dried to ensure the cleanliness of the monofilament fibers and the uniformity of staining; specifically, by dispersing the sodium fluoride and silica mixed powder on the nylon substrate and the suspension impregnation coating, a gradient release of fluoride ions is achieved, which continuously inhibits oral bacteria and improves the gum-protecting and antibacterial health care effect of the dental floss.

[0021] Reference Figure 1 The process involves spraying molten wax solution. Microcrystalline wax and beeswax are mixed and heated to 65±2℃ to melt and form a composite lubricant. The molten wax solution is then uniformly sprayed onto the surface of 840D-66 nylon floss using a high-pressure spraying device. The mixing ratio of microcrystalline wax and beeswax is 3:1, and the amount of the mixture sprayed onto the nylon floss is 3-5 wt%. Specifically, by mixing microcrystalline wax and beeswax and then molten and spraying, a uniform lubricating layer is formed, reducing the coefficient of friction, significantly reducing the resistance of dental floss entering the interdental spaces, and improving the smoothness of dental floss use.

[0022] Reference Figure 1 The suspension was prepared by dispersing sodium fluoride and silicon dioxide in a mixed solvent of ethanol and water, and ultrasonically treating it for 30 minutes to ensure uniform dispersion. Then, a mixture of molten microcrystalline wax and beeswax was added as a carrier to form the suspension. For coating impregnation and curing, the suspension was placed in an impregnation tank, and then a nylon thread was continuously passed through the tank at a speed of 15 m / min. The coating thickness was controlled to be 20-40 μm, followed by hot air drying at 80℃ for curing. The volume ratio of the ethanol to water mixed solvent was 3:7, and the pH value of the suspension was 6.5-7.2 to prevent hydrolysis of sodium fluoride. The liquid temperature of the suspension in the impregnation tank was controlled at 55℃. 60℃; Specifically, the sodium fluoride-silica suspension is ultrasonically treated for 30 minutes, combined with continuous impregnation at 15m / min, and the coating thickness is controlled at 20-40μm, which improves the adhesion strength, reduces the risk of coating peeling off during use, and hot air drying ensures the rapid curing of wax and antibacterial components. Moreover, silica, as a carrier, improves the dispersion stability of sodium fluoride, and its surface hydroxyl groups promote interfacial bonding with nylon substrate, enhancing coating durability, thereby avoiding the potential impact of residual solvents on oral safety and improving the gingival protection and antibacterial health care effect of dental floss.

[0023] Reference Figure 1Flavor loading and surface modification: Double peppermint oil flavoring and β-cyclodextrin are mixed and stirred at 40°C for 2 hours to form flavor microcapsules. At this time, β-cyclodextrin encapsulates the double peppermint oil flavoring through hydrophobic cavities, forming a stable molecular inclusion complex. Then, the microcapsules are uniformly attached to the surface of dental floss through an electrostatic spraying process. The mixing mass ratio of double peppermint oil flavoring to β-cyclodextrin is 1:3. The voltage and pressure of the electrostatic spraying of the flavor microcapsules are 30kV and 0.3MPa. Specifically, by encapsulating the double peppermint oil flavoring through hydrophobic cavities with β-cyclodextrin to form a stable molecular inclusion complex, the evaporation rate of the flavor is slowed down, the sustained-release time is extended, and the fresh feeling in the mouth is ensured to last throughout the entire day of use. The encapsulated flavor microcapsules can resist external factors such as saliva washing and temperature and humidity changes, reduce fragrance loss, and improve fragrance durability.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A process for preparing a gum-protecting, antibacterial, and health-promoting dental floss roll, characterized in that, The preparation process steps are as follows: S1: Raw material pretreatment: Sodium fluoride-silica mixed powder and 840D-66 nylon granules are mechanically mixed at a ratio of 10-15 wt%, and processed using a high-speed mixer for 10 minutes to achieve uniform dispersion; S2: Melt spinning, the mixed particles are processed by twin-screw melt spinning process, heated to 260-280℃ to melt and then extruded into shape, the spinneret orifice diameter is controlled at 0.1-0.15mm, and then disinfected, dyed and dried to ensure the cleanliness of the monofilament fibers and the uniformity of dyeing. S3: Molten wax spraying. Microcrystalline wax and beeswax are mixed and heated to 65±2℃ to melt and form a composite lubricant. The molten wax is then evenly sprayed onto the surface of 840D-66 nylon thread using a high-pressure spraying device. S4: Suspension preparation: Sodium fluoride and silicon dioxide are dispersed in a mixed solvent of ethanol and water, and ultrasonically treated for 30 minutes to ensure uniform dispersion. Then, a mixture of molten microcrystalline wax and beeswax is added as a carrier to form a suspension. S5: Coating impregnation and curing. The suspension is placed in the impregnation tank, and then the nylon thread is continuously passed through the impregnation tank at a speed of 15m / min. The coating thickness is controlled to be 20-40μm, and then it is dried and cured by hot air at 80℃. S6: Fragrance loading and surface modification. Double peppermint oil fragrance and β-cyclodextrin are mixed and stirred at 40°C for 2 hours to form fragrance microcapsules. At this time, β-cyclodextrin encapsulates the double peppermint oil fragrance through hydrophobic cavities to form a stable molecular inclusion complex. Then, the microcapsules are uniformly attached to the dental floss surface by electrostatic spraying.

2. The manufacturing process of a gingival-protecting, antibacterial, and health-promoting dental floss roll as described in claim 1, characterized in that: The mixing ratio of the microcrystalline wax and the beeswax is 3:

1.

3. The manufacturing process of a gingival-protecting, antibacterial, and health-promoting dental floss roll as described in claim 1, characterized in that: The mixture of microcrystalline wax and beeswax is sprayed onto the nylon thread at a rate of 3-5 wt%.

4. The manufacturing process of a gingival-protecting, antibacterial, and health-promoting dental floss roll as described in claim 3, characterized in that: The volume ratio of the ethanol and water mixed solvent is 3:

7.

5. The manufacturing process of a gingival-protecting, antibacterial, and health-promoting dental floss roll as described in claim 1, characterized in that: The suspension has a pH of 6.5-7.2 to prevent the hydrolysis of sodium fluoride.

6. The manufacturing process of a gingival-protecting, antibacterial, and health-promoting dental floss roll as described in claim 1, characterized in that: The temperature of the suspension in the impregnation tank is controlled at 55℃-60℃.

7. The manufacturing process of a gingival-protecting, antibacterial, and health-promoting dental floss roll as described in claim 1, characterized in that: The mass ratio of the double peppermint oil flavoring to β-cyclodextrin is 1:

3.

8. The manufacturing process of a gingival-protecting, antibacterial, and health-promoting dental floss roll as described in claim 1, characterized in that: The voltage for electrostatic spraying of the fragrance microcapsules is 30kV and the pressure is 0.3MPa.

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