Preparation method of tooth whitening patch and tooth whitening patch

Abstract

The invention discloses a preparation method of a tooth whitening patch and the tooth whitening patch, and relates to the technical field of tooth whitening patches. The preparation method comprises the following steps: mixing pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerol, phthalimide peroxyacetic acid, water, essence and sweetening agent to form a gel layer; coating the gel layer on the backing layer; after the back lining layer is coated with the gel layer, the gel layer is covered with the thin film layer through a coating machine for film covering treatment, disinfection is conducted after film covering treatment is completed, and the tooth whitening strip is obtained and rolled; and a die-cutting machine is used for rolling the tooth whitening sticker for die cutting, and the tooth whitening sticker is obtained. The gel layer of the tooth whitening patch adopts the Pulullan and the polyglutamic acid as a film forming main body, so that the tooth patch can be attached to teeth more tightly, whitening factors in the tooth patch can be quickly transferred to the teeth, the action time of the whitening factors is prolonged, and the tooth whitening effect is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of whitening tooth paste, and in particular to a preparation method of the whitening tooth paste and the whitening tooth paste. Background Art

[0002] As people's living standards improve, they pay more and more attention to their own dental beauty. Therefore, there are more and more products for dental beauty, including teeth whitening pens, teeth whitening trays, teeth whitening kits, whitening tooth stickers, etc. Whitening tooth stickers usually include: a plastic film layer, a gel layer and a peeling backing layer. The gel layer contains teeth whitening efficacy substances, which are closely connected with the plastic film layer. When used, the peeling backing layer is torn off, and the side with the gel layer is pasted on the tooth surface. The tooth sticker is adjusted by light pressure with fingers to make it completely fit the tooth surface. After use, the tooth sticker is taken out from the teeth and discarded. Whitening tooth stickers are favored by consumers because of their advantages such as easy to carry, simple to use, and low price.

[0003] The main mechanism of action of whitening tooth paste is to use strong oxidants to decolorize exogenous coloring matter to achieve the effect of whitening. Although the current whitening tooth paste has the effect of whitening, there are still the following problems: in the preparation process of existing whitening tooth paste, usually anhydrous ethanol is used to reconcile various raw materials, but the tooth paste reconciled with anhydrous ethanol is easy to make the user's oral cavity contain alcohol components, and when the user drives a vehicle during the use of the whitening tooth paste, it is easy to be investigated by the traffic police, so that the use environment of the whitening tooth paste is restricted. Some whitening tooth pastes use water to merge polymers (at least one of cellulose gum, xanthan gum, carbomer, agar, sodium alginate, PVP, polyvinyl alcohol, dextrin, and modified starch), and the fit of this whitening tooth paste to teeth is not ideal enough, resulting in insufficient performance of the whitening factor to the effect of teeth.

[0004] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0005] The existing whitening teeth stickers do not fit the teeth well enough, so that the whitening factors cannot fully play their role on the teeth, affecting the whitening effect. Summary of the invention

[0006] The purpose of the present invention is to provide a preparation method of a whitening tooth paste and a whitening tooth paste, so as to solve the technical problem in the prior art that the whitening tooth paste does not fit the teeth well enough, so that the whitening factor does not fully play its role on the teeth, affecting the whitening effect.

[0007] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] In a first aspect, the present invention provides a method for preparing a whitening tooth paste, and the preparation of the whitening tooth paste comprises the following steps:

[0010] Mixing pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor and sweetener to form a gel layer;

[0011] coating the gel layer on a backing layer;

[0012] After coating the gel layer on the backing layer, a coating machine is used to cover the gel layer with a film layer for lamination, and after the lamination is completed, disinfection is performed to obtain a rolled whitening tooth strip;

[0013] The whitening tooth paste is rolled up and die-cut using a die-cutting machine to obtain the whitening tooth paste.

[0014] Optionally, the forming of the gel layer comprises:

[0015] Weigh pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor, and sweetener;

[0016] Add the weighed pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerol, phthalimidoperacetic acid, water, flavor and sweetener into the reaction kettle in sequence, and stir and blend in the reaction kettle;

[0017] Static defoaming, forming a gel layer.

[0018] Optionally, the gel layer is composed of 20%-40% pullulan, 20%-40% polyglutamic acid, 0.8%-1.2% calcium phosphosilicate, 0.5%-2 hyaluronic acid, 10%-18% glycerol, 6%-10% phthalimidoperoxycaproic acid, 5%-15% water, 0.2%-0.4% flavor, and 0.1%-0.3% sweetener in percentage by mass.

[0019] Optionally, the gel layer is composed of 26%-40% pullulan, 26%-40% polyglutamic acid, 0.8%-1.2% calcium phosphosilicate, 0.5%-1.5% hyaluronic acid, 12%-16% glycerol, 6%-10% phthalimidoperoxycaproic acid, 6%-14% water, 0.2%-0.4% flavor, and 0.1%-0.3% sweetener.

[0020] Optionally, the gel layer is composed of 30%-36% pullulan, 30%-36% polyglutamic acid, 0.8%-1.2% calcium phosphosilicate, 0.5%-1% hyaluronic acid, 13%-15% glycerol, 7%-10% phthalimidoperoxycaproic acid, 8%-12% water, 0.2%-0.4% flavor, and 0.1%-0.3% sweetener in percentage by mass.

[0021] Optionally, the flavor is edible fruit flavor and / or menthol flavor; and the sweetener is saccharin sodium or sucrose.

[0022] Optionally, the coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain the whitening tooth strip roll, including:

[0023] Using a coating machine to cover the film layer on the gel layer for coating treatment; wherein the working process of the coating machine includes drying, coating, slitting, waste collection and winding;

[0024] The backing layer, gel layer and film layer after the film coating treatment are placed in a disinfection box, and the backing layer, gel layer and film layer are disinfected by light irradiation with a UV lamp.

[0025] Optionally, the drying parameters of the coater are: temperature 80°C-100°C, time 6-10 minutes.

[0026] In a second aspect, the present invention further provides a whitening tooth paste, which is made by the preparation method of the whitening tooth paste described above, and comprises a backing layer, a gel layer and a coating layer, wherein the gel layer is located between the backing layer and the coating layer.

[0027] Optionally, the gel layer includes pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor and sweetener mixed in proportion.

[0028] Implementing one of the above technical solutions of the present invention has the following advantages or beneficial effects:

[0029] The gel layer of the whitening tooth paste in this embodiment uses pullulan and polyglutamic acid as the main film-forming body, which can make the tooth paste fit more closely with the teeth, so that the whitening factor in the tooth paste can be quickly transferred to the teeth, prolonging the action time of the whitening factor and enhancing the teeth whitening effect. At the same time, water is used instead of ethanol to fuse the remaining materials. The tooth paste does not contain ethanol, so there will be no safety hazard when the user drives after using it, and the use environment is not restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. It is obvious that the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0031] Figure 1 1 is a schematic flow chart of a method for preparing a whitening tooth paste according to the first embodiment of the present invention;

[0032] Figure 2 It is a flow chart of step S1 in the first embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the various exemplary embodiments to be described below will refer to the corresponding drawings, which constitute a part of the exemplary embodiments, wherein various exemplary embodiments that may be used to implement the present invention are described. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present disclosure. It should be understood that they are only examples of processes, methods, devices, etc. that are consistent with some aspects of the present disclosure as detailed in the attached claims, and other embodiments may also be used, or the embodiments listed herein may be modified in structure and function without departing from the scope and essence of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", etc. indicate the orientation or positional relationship based on the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the elements referred to must have a specific orientation, be constructed and operated in a specific orientation. The terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "multiple" means two or more. The terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a communication connection, a direct connection, an indirect connection through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] In order to illustrate the technical solution of the present invention, a specific embodiment is used below for description, and only the parts related to the embodiment of the present invention are shown.

[0036] Embodiment 1:

[0037] like Figure 1 As shown, the present invention provides a method for preparing a whitening tooth paste, and the preparation of the whitening tooth paste comprises the following steps:

[0038] S1, mixing pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor and sweetener to form a gel layer;

[0039] S2, coating the gel layer on the backing layer;

[0040] S3, after coating the gel layer on the backing layer, use a coating machine to coat the backing layer, the gel layer and the film layer, and after the coating process is completed, sterilize to obtain the whitening tooth strips and roll them up;

[0041] S4. Use a die-cutting machine to roll up the whitening tooth paste and perform die-cutting to obtain the whitening tooth paste.

[0042] Next, combine Figure 1 Detailed description of the preparation process of whitening teeth strips:

[0043] First, step S1 is performed to mix pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerol, phthalimido peracetic acid, water, flavor and sweetener to form a gel layer. Figure 2 As shown, the specific steps of generating the gel layer include:

[0044] S11. Weigh pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor and sweetener;

[0045] S12, adding weighed pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerol, phthalimidoperacetic acid, water, flavor and sweetener into the reactor in sequence, and stirring and blending in the reactor;

[0046] S13, static defoaming, forming a gel layer.

[0047] Specifically, in step S1, in order to ensure that the formed gel layer achieves a good whitening effect and a fitting effect, it is necessary to first weigh pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerol, phthalimido peracetic acid, water, essence and sweetener, and pour them into the reactor in turn after weighing to stir so that they are fully fused. After mixing, each of the above raw materials will produce bubbles, so it is necessary to keep it still for a period of time until the bubbles are eliminated, and a gel layer is formed. After the bubbles are eliminated, when the subsequent coating is carried out, it can be ensured that the gel layer is more evenly coated on the backing layer, and the user's experience can be improved. It should be noted that when performing the above steps, it can be selected to be carried out at room temperature, and there is no special requirement for the temperature in the preparation process, and it can be selected according to the actual situation.

[0048] In the present embodiment, pullulan and polyglutamic acid are film-forming polymers. The content of pullulan is 20% to 40%. Pullulan has good film-forming properties. Adding pullulan to the gel layer can improve the wall-hanging effect of the whitening tooth paste. It also has significant anti-inflammatory activity and antioxidant properties, which can improve the whitening effect of teeth. In the present embodiment, the content of pullulan can be selected according to actual conditions. Specifically. The content selection of pullulan is detailed in the subsequent embodiments.

[0049] The content of polyglutamic acid is 20% to 40%. Polyglutamic acid has the effect of promoting mineral absorption, can better act on teeth, and promote the absorption of minerals; and polyglutamic acid can inhibit the production of melanin, achieve whitening effect, and maintain the pH value (acid-base value) of teeth. In this embodiment, the content of polyglutamic acid can be selected according to actual conditions. Specifically, the content of polyglutamic acid is selected in detail in the subsequent embodiments.

[0050] In this embodiment, the content of phthalimido peroxycaproic acid (PAP) is 6%-10%, and the maximum does not exceed 10%. Phthalimide peroxycaproic acid is a whitening factor, has unique oxidant chemical properties, is relatively mild, can adjust the pH value, acts on the staining factor on the teeth to achieve a whitening effect, can be dissolved in the surface of tooth enamel, and can effectively whiten teeth without damaging the internal and external structures of the teeth. Specifically, the content of phthalimido peroxycaproic acid is selected in detail in the subsequent embodiments.

[0051] The content of calcium phosphosilicate is 1%-3%. Calcium phosphosilicate can directly generate hydroxyapatite, the main component of human tooth enamel, when in direct contact with saliva, and cover the tooth surface to achieve the effect of repairing tooth enamel. While repairing tooth enamel, it can also play an anti-sensitivity role and relieve tooth sensitivity. In this embodiment, the content of calcium phosphosilicate can be selected according to actual conditions, and its content is preferably 1%.

[0052] The content of hyaluronic acid is 0.5%-2%. Hyaluronic acid can play a moisturizing role, moisturize the oral cavity, and can also inhibit the growth of dental plaque and improve the health of gums. In this embodiment, the content of hyaluronic acid can be selected according to actual conditions. Specifically, the selection of the content of hyaluronic acid is detailed in the subsequent embodiments.

[0053] In addition, in this embodiment, glycerol and water are used as solvents to play the role of solvents for fusion with other materials. In this embodiment, the content of glycerol is 10%-18%, and its content can be added according to actual conditions, and the specific content of glycerol can be selected as 14%. The content of water is 5%-15%, and its content can be added according to actual conditions, and the specific content of water can be selected as 10%.

[0054] The flavor is edible fruit flavor and / or menthol flavor, which can improve the smell of the tooth paste and enhance the feeling of use. In this embodiment, the flavor can be selected from one or more of edible fruit flavor and menthol flavor, and there is no specific limitation. More specifically, the content of the flavor is 0.2%-0.4%, which can be added according to actual conditions, and specifically 0.3% can be selected.

[0055] The sweetener is sodium saccharin or sucrose. The role of the sweetener in the tooth paste is to clean the oral cavity, prevent the growth of streptococci and the production of acid, promote saliva secretion, slow down the decrease in pH value, prevent caries and reduce the production of dental plaque. The composition of the sweetener is not limited in this embodiment, and it can be selected from sodium saccharin and sucrose. More specifically, the content of the sweetener is 0.1%-0.3%, which can be added according to actual conditions, and specifically 0.2% can be selected.

[0056] No ethanol is added to the gel layer in this embodiment, and the generated whitening tooth paste does not contain alcohol. There is no safety hazard when the user drives after using it, and the use environment is not restricted. In addition, pullulan and polyglutamic acid are used as the film-forming body in the gel layer, which can improve its adhesion. The whitening tooth paste made by using this gel layer can form a close fit with the teeth, so that the whitening factor is quickly transferred to the teeth. At the same time, the action time of the whitening factor is extended, and the whitening effect of the teeth is enhanced. In addition, the glucose and glutamic acid after the biodegradation of pullulan and polyglutamic acid are non-toxic, which can ensure the safety during use.

[0057] After executing step S1, execute step S2 to coat the gel layer on the backing layer. Specifically, coating the gel layer on the backing layer is achieved using a coating machine. The staff needs to first adjust the glue output thickness of the coating machine according to the thickness of the gel layer in the whitening tooth paste, and then turn on the coating machine to start working and coat the gel layer on the backing layer. In this embodiment, the glue output thickness of the coating machine is 0.2mm-0.6mm, and the specific glue output thickness is adjusted according to the thickness of the gel layer in the whitening tooth paste, which is not specifically limited in this embodiment.

[0058] Then, step S3 is performed, after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain the whitening tooth paste roll. The process of obtaining the whitening tooth paste roll includes:

[0059] The backing layer, gel layer and film layer are coated by a coating machine; wherein the working process of the coating machine includes drying, coating, slitting, waste collection and winding. It should be noted that the drying parameters of the coating machine during drying are: temperature 80°C-100°C, time 6-10 minutes. In this embodiment, the temperature can be selected as 90°C and the time is 8 minutes.

[0060] The backing layer, gel layer and film layer after the lamination treatment are placed in a disinfection box, and the backing layer, gel layer and film layer are disinfected by light exposure with a UV lamp.

[0061] Finally, step S4 is performed, and the whitening tooth paste roll is die-cut using a die-cutting machine to obtain the whitening tooth paste. Specifically, after the whitening tooth paste roll formed by the backing layer, the gel layer and the film layer is obtained, the staff selects a suitable knife die according to the actual required tooth paste shape, and installs the knife die in the die-cutting machine, and uses the die-cutting machine to cut. Among them, when the die-cutting machine is die-cutting, the whitening tooth paste roll is die-cut according to the program set by it, and then the preparation of the whitening tooth paste is completed.

[0062] The gel layer of the whitening tooth paste in this embodiment uses pullulan and polyglutamic acid as the main film-forming body, which can make the tooth paste fit more closely with the teeth, so that the whitening factor in the tooth paste can be quickly transferred to the teeth, prolonging the action time of the whitening factor and enhancing the teeth whitening effect. At the same time, water is used instead of ethanol to fuse the remaining materials. The tooth paste does not contain ethanol, so there will be no safety hazard when the user drives after using it, and the use environment is not restricted.

[0063] Embodiment 1:

[0064] The preparation method of the whitening tooth paste of this embodiment is as follows:

[0065] Taking 100 g as an example, prepare ingredients with the content of 40% pullulan, 26% polyglutamic acid, 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0066] The process flow is as follows: pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and perform die-cutting to obtain a whitening tooth paste.

[0067] Embodiment 2:

[0068] The preparation method of the whitening tooth paste of this embodiment is as follows:

[0069] Taking 100 g as an example, prepare ingredients with the content of 33% pullulan, 33% polyglutamic acid, 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0070] The process flow is as follows: pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and perform die-cutting to obtain a whitening tooth paste.

[0071] Embodiment 3:

[0072] The preparation method of the whitening tooth paste of this embodiment is as follows:

[0073] Taking 100 g as an example, prepare ingredients with the content of 26% pullulan, 40% polyglutamic acid, 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0074] The process flow is as follows: pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and perform die-cutting to obtain a whitening tooth paste.

[0075] Comparative Example 1:

[0076] The preparation method of the whitening tooth paste of this comparative example is as follows:

[0077] Taking 100 g as an example, prepare ingredients with the content of 33% cellulose gum, 33% dextrin, 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0078] The process flow is as follows: cellulose gum, dextrin, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and die-cut to obtain a whitening tooth paste.

[0079] Comparative Example 2:

[0080] The preparation method of the whitening tooth paste of this comparative example is as follows:

[0081] Taking 100 g as an example, prepare ingredients with the content of 33% cellulose gum, 33% PVP (polyvinyl pyrrolidone), 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0082] The process flow is as follows: cellulose gum, PVP, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and perform die-cutting to obtain a whitening tooth paste.

[0083] Comparative Example 3:

[0084] The preparation method of the whitening tooth paste of this comparative example is as follows:

[0085] Taking 100 g as an example, prepare ingredients with the content of 33% cellulose gum, 26% polyvinyl alcohol, 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0086] The process flow is as follows: cellulose gum, polyvinyl alcohol, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and die-cut to obtain a whitening tooth paste.

[0087] Comparative Example 4:

[0088] The preparation method of the whitening tooth paste of this comparative example is as follows:

[0089] Taking 100g as an example, prepare 33% polyvinyl alcohol, 33% dextrin, 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0090] The process flow is as follows: polyvinyl alcohol, dextrin, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and perform die-cutting to obtain a whitening tooth paste.

[0091] Comparative Example 5:

[0092] The preparation method of the whitening tooth paste of this comparative example is as follows:

[0093] Taking 100g as an example, prepare ingredients with the content of 33% modified starch, 33% PVP (polyvinyl pyrrolidone), 1% calcium phosphosilicate, 0.5% hyaluronic acid, 14% glycerol, 8% phthalimidoperacetic acid, 10% deionized water, 0.3% menthol, and 0.2% saccharin sodium.

[0094] The process flow is as follows: modified starch, PVP, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, deionized water, menthol, and sodium saccharin are mixed to form a gel layer; the gel layer is coated on the backing layer; after the gel layer is coated on the backing layer, a coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, disinfection is performed to obtain a whitening tooth paste roll; a die-cutting machine is used to roll the whitening tooth paste and perform die-cutting to obtain a whitening tooth paste.

[0095] It should be noted that in the above-mentioned embodiments and comparative examples, pullulan, polyglutamic acid, cellulose gum, dextrin, modified starch and polyvinyl alcohol are all film-forming polymers.

[0096] Next, the above-described embodiments and comparative examples were tested, and the test items included a tooth paste adhesion test and a whitening effect test.

[0097] The tooth patch adhesion test method is as follows: prepare artificial saliva, a towel and a tooth patch (Examples 1-3 and Comparative Examples 1-5), moisten the towel with artificial saliva, then stick the gel layer of the tooth patch on the moistened towel and leave it for 10 minutes, then tear off the tooth patch, and finally use dry fingers to experience the adhesion of the torn tooth patch gel layer. If the adhesion is strong, it means that the tooth patch has a good fit to the teeth; otherwise, it is weak.

[0098] The whitening effect test method is as follows: take 8 egg shells with white surface, dye them with 10% coffee water solution, rinse them with water and dry them after dyeing, then compare them with the colorimetric card, and record the chromaticity value; moisten the dyed egg shells, tear off the tooth paste (Example 1-3 and Comparative Example 1-5) and stick them on, leave them for 10 minutes and then tear them off from the egg shells, then compare the egg shells with the colorimetric card, record the chromaticity value, and the difference between the two chromaticity values ​​is the whitening effect of the tooth paste.

[0099] The test results of the adhesion and whitening effect of the tooth paste (Examples 1-3 and Comparative Examples 1-5) are shown in Table 1:

[0100] Table 1

[0101]

[0102] It can be seen from the data in the table that the tooth paste prepared by Examples 1-3 has good adhesion, and good adhesion accelerates the transmission speed of the whitening factor and prolongs the action time of the whitening factor, so the whitening effect is better; at the same time, in this embodiment, ethanol is not used as a fusing agent for other materials, and the tooth paste does not contain ethanol. There will be no safety hazard when the user drives after using it, and the use environment is not restricted.

[0103] The embodiment is only a specific example and does not represent only one implementation mode of the present invention.

[0104] Embodiment 2:

[0105] A whitening tooth paste is made by the preparation method of the whitening tooth paste described in Example 1, comprising a backing layer, a gel layer and a coating layer, wherein the gel layer is located between the backing layer and the coating layer.

[0106] As an optional embodiment, the gel layer includes pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerol, phthalimido peracetic acid, water, essence and sweetener mixed in proportion. Specifically, the gel layer of the whitening tooth paste in this embodiment adopts pullulan and polyglutamic acid as the film-forming body, which can make the tooth paste fit the teeth very closely, so that the whitening factor in the tooth paste can be quickly transferred to the teeth, prolong the action time of the whitening factor, and enhance the teeth whitening effect. At the same time, water is used instead of ethanol to fuse the remaining materials to avoid the tooth paste containing ethanol components, and the user will not have a safety hazard when driving after use, and the use environment is not restricted.

[0107] The above description is only the preferred embodiment of the present invention. It is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present invention.

Claims

1. A method for preparing a whitening tooth paste, characterized in that: The preparation of whitening strips includes the following steps: Mixing pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor and sweetener to form a gel layer; coating the gel layer on a backing layer; After coating the gel layer on the backing layer, a coating machine is used to cover the gel layer with a film layer for lamination, and after the lamination is completed, disinfection is performed to obtain a rolled whitening tooth strip; The whitening tooth paste is rolled up and die-cut using a die-cutting machine to obtain the whitening tooth paste.

2. The method for preparing a whitening tooth paste according to claim 1, characterized in that: The forming of the gel layer comprises: Weigh pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor, and sweetener; Add the weighed pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerol, phthalimidoperacetic acid, water, flavor and sweetener into the reaction kettle in sequence, and stir and blend in the reaction kettle; Static defoaming, forming a gel layer.

3. The method for preparing a whitening tooth paste according to claim 1, characterized in that: The gel layer is recorded as follows by mass percentage: 20%-40% of pullulan, 20%-40% of polyglutamic acid, 0.8%-1.2% of calcium phosphosilicate, 0.5%-2 of hyaluronic acid, 10%-18% of glycerol, 6%-10% of phthalimidoperoxycaproic acid, 5%-15% of water, 0.2%-0.4% of flavor, and 0.1%-0.3% of sweetener.

4. The method for preparing a whitening tooth paste according to claim 3, characterized in that: The gel layer is recorded as follows by mass percentage: 26%-40% of pullulan, 26%-40% of polyglutamic acid, 0.8%-1.2% of calcium phosphosilicate, 0.5%-1.5% of hyaluronic acid, 12%-16% of glycerol, 6%-10% of phthalimidoperoxycaproic acid, 6%-14% of water, 0.2%-0.4% of flavor, and 0.1%-0.3% of sweetener.

5. The method for preparing a whitening tooth paste according to claim 4, characterized in that: The gel layer is recorded as follows by mass percentage: 30%-36% of pullulan, 30%-36% of polyglutamic acid, 0.8%-1.2% of calcium phosphosilicate, 0.5%-1% of hyaluronic acid, 13%-15% of glycerol, 7%-10% of phthalimidoperoxycaproic acid, 8%-12% of water, 0.2%-0.4% of flavor, and 0.1%-0.3% of sweetener.

6. The method for preparing a whitening tooth paste according to claim 1, characterized in that: The flavor is edible fruit flavor and / or menthol flavor; the sweetener is saccharin sodium or sucrose.

7. The method for preparing a whitening tooth paste according to claim 1, characterized in that: The coating machine is used to cover the film layer on the gel layer for lamination, and after the lamination is completed, the film layer is disinfected to obtain the whitening tooth paste roll, including: Using a coating machine to cover the film layer on the gel layer for coating treatment; wherein the working process of the coating machine includes drying, coating, slitting, waste collection and winding; The backing layer, gel layer and film layer after the film coating treatment are placed in a disinfection box, and the backing layer, gel layer and film layer are disinfected by light irradiation with a UV lamp.

8. The method for preparing a whitening tooth paste according to claim 1, characterized in that: The drying parameters of the coating machine are: temperature 80°C-100°C, time 6-10 minutes.

9. A whitening tooth paste, characterized in that: The whitening tooth paste is made by the preparation method of any one of claims 1 to 8, comprising a backing layer, a gel layer and a coating layer, wherein the gel layer is located between the backing layer and the coating layer.

10. The whitening tooth paste according to claim 9, characterized in that: The gel layer comprises pullulan, polyglutamic acid, calcium phosphosilicate, hyaluronic acid, glycerin, phthalimidoperacetic acid, water, flavor and sweetener mixed in proportion.

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