Fragrance bead and preparation method therefor

Abstract

Disclosed in the present invention are a fragrance bead and a preparation method therefor, relating to the technical field of detergents. The appearance colors of the fragrance bead have a macaron-like color palette, the saturation of the appearance colors thereof is 0-70%, and the brightness value is 50-100%, which can make the appearance colors exhibit a soft pink visual effect that can better attract consumers.

Description

Fragrance beads and preparation method thereof Technical Field

[0001] The present invention relates to the technical field of detergents, in particular to fragrance beads and a preparation method thereof. Background Art

[0002] Fragrance beads have a fragrance-retaining effect. Their ingredients contain essence and nano-microcapsules. The essence and nano-microcapsules release fragrance factors through friction when washing clothes or wearing clothes, making the clothes have a fragrant effect. Therefore, they are loved by consumers and have become a new favorite for fragrance enhancement in household washing.

[0003] During the sales process of fragrance beads, the appearance and color of the beads are one of the factors that affect their sales. To meet consumer demand for color and appearance, existing fragrance beads often add colorants to give them a vibrant color for easier sales. However, the color of existing fragrance beads is usually adjusted by adding pigments during the melting of the material. However, because the added pigments can only adhere to the surface of the base material, after the hot melt material cools into beads, the beads generally have a lightness value of less than 50% and a saturation of greater than 70%. This visually appears to be dark, harsh, and plastic-like. To improve the lightness value and reduce the saturation of the product, the existing technology also adds non-melting solid substances during the production process to increase the roughness of the particle surface and reduce the color saturation of the beads. However, this method also creates new problems, such as surface roughness and bead shedding. In addition, during the color adjustment process, the lightness and saturation of beads produced by mixing the same dye or pigment with different base materials can vary. This requires fine-tuning each time the color is adjusted, and the desired appearance may not be achieved. This leads to color variations during the production process, making it difficult to achieve a unified standard and making color adjustment difficult.

[0004] Macarons, inspired by Italian desserts, are popular among women due to their pinkish hue, low purity, and high lightness, creating a pinkish aesthetic. However, fragrance beads are primarily purchased by women, but existing fragrance beads lack macaron-like color effects, failing to meet the high color demands of female consumers. Clearly, the existing technology still needs improvement and advancement.

[0005] Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a fragrance bead and a preparation method thereof, aiming to solve the problem that the existing fragrance beads have a plastic texture and lack a macaron color.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A fragrance bead, wherein the appearance color of the fragrance bead body is a macaron color system, the saturation of the appearance color is 0-70%, and the lightness value is 50-100%.

[0009] The fragrance beads contain microbubbles in their bodies, and the volume of the microbubbles accounts for 15 to 40% of the volume of the beads.

[0010] In the fragrance beads, the effective diameter of the microbubbles is 100 μm to 1000 μm.

[0011] In the fragrance beads, the saturation of the appearance color of the beads is 20-40%, and the brightness is 70-100%.

[0012] A method A for preparing fragrance beads, wherein the fragrance beads are the fragrance beads described above, wherein the method comprises the following steps:

[0013] Step A1. Prepare the base material, forming agent, fragrance, gas capture agent, additive A, additive B, and pigment according to the ratio;

[0014] Step A2. Heat the base material to a molten state, add the forming agent while stirring, and stir to thoroughly mix the forming agent and the molten base material; add a gas scavenger and stir to mix; then add the fragrance and pigment and stir to mix; add the aqueous solution of auxiliary agent A in batches and stir to mix; then add the aqueous solution of auxiliary agent B in batches and stir to mix to allow auxiliary agents A and B to fully react, thereby obtaining a mixture containing microbubbles;

[0015] Step A3. Adjust the temperature of the mixture, granulate, and cool and shape to obtain fragrance beads with macaron color effect.

[0016] In the preparation method A of the fragrance beads, the base material includes one or more combinations of ethylene oxide copolymers, propylene oxide copolymers, and ethylene oxide / propylene oxide copolymers.

[0017] In the preparation method A of the fragrance beads, the auxiliary agent A includes a combination of one or more of alkaline earth metal carbonates, water-soluble alkaline earth metal bicarbonates, water-soluble alkaline earth metal sulfites and water-soluble alkaline earth metal bisulfites.

[0018] In the preparation method A of the fragrance beads, in step A3, the temperature of the mixture is adjusted to 50-75°C.

[0019] In the preparation method A of the fragrance beads, the gas capture agent is a powder material with a porous structure, the particle size of which is 10 to 1000 nm and the specific surface area of ​​which is 1 to 1000 m 2 / g.

[0020] A method B for preparing fragrance beads, wherein the fragrance beads are the fragrance beads described above, wherein the method comprises the following steps:

[0021] Step B1. Prepare the base material, forming agent, gas capture agent, fragrance, pigment and antibacterial agent according to the ratio;

[0022] Step B2. The base material is heated to a molten state; while stirring, a forming agent, a gas capture agent, a fragrance, an antibacterial agent, and a pigment are added and stirred to obtain a mixture;

[0023] Step B3. Introduce gas into the mixture and stir evenly to disperse the gas evenly in the mixture;

[0024] Step B4. Adjust the temperature of the mixture to 50-75°C, granulate, and cool to obtain macaron-style fragrance beads. Beneficial effects:

[0025] The present invention provides a fragrance bead and a preparation method thereof. The fragrance bead presents a macaron-colored appearance by adjusting the saturation of its appearance color to 0-70% and the lightness value to 50-100%, thereby having a pink and tender sensory effect and being able to better attract consumers.

[0026] The preparation method of the fragrance beads includes preparation method A and preparation method B, that is, microbubbles are introduced into the beads by chemical or physical methods. The microbubbles can adjust the apparent saturation and lightness of the beads, thereby achieving the purpose of forming macaron color. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a physical picture of the fragrance beads provided by the present invention (milky white).

[0028] FIG2 is a physical picture of the fragrance beads provided by the present invention (light yellow).

[0029] FIG3 is a physical picture of the fragrance beads provided by the present invention (light pink). DETAILED DESCRIPTION

[0030] The present invention provides a fragrance-retaining bead and a method for preparing the same. To clarify the objectives, technical solutions, and effects of the present invention, the present invention is further described in detail with reference to the following examples. It should be understood that the specific examples described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0031] A preferred embodiment of the present invention provides a fragrance bead, as shown in Figures 1, 2, and 3, wherein the appearance color of the fragrance bead is macaron color, having a low saturation and a high lightness value. The fragrance bead with a macaron appearance effect can have a bead hue of any one of red, yellow, and blue, or various intermediate colors formed by superimposing the three primary colors of red, yellow, and blue in pairs, or a complex color produced by mixing the three primary colors of red, yellow, and blue in different proportions. In order to obtain the target hue, during the production process, a pigment or pigment of the corresponding hue can be selected according to actual needs. By dispersing the pigment or pigment in the bead, the bead can have the corresponding hue. The macaron-colored fragrance beads have a low color saturation, less than or equal to 70%. Since the color saturation reflects the vividness of the color, the lower the saturation, the lower the color purity. For example, when the color saturation of the fragrance beads is less than or equal to 70%, the color appears to be smeared with powder or mixed with powder, creating a powdery sensory effect, that is, a "candy color" similar to macaron desserts. The macaron-colored fragrance beads have a color lightness value of 50-100%. Since the lightness value mainly reflects the brightness of the color, that is, the depth of the color or light effect. When the brightness of the light is consistent, the lightness value is related to the fineness of the bead surface texture. The finer and smoother the bead surface, the greater the surface reflectance coefficient, and the brighter the sensory effect. Therefore, when the surface of the beads is relatively delicate and its lightness value is between 50% and 100%, combined with a lower saturation, a color ratio relationship with a pink hue, lower purity and higher lightness can be formed, ultimately presenting a macaron color appearance.

[0032] In one embodiment, the saturation of the fragrance beads to achieve a macaron-colored appearance can be 0-70%, 10-50%, 20-40%, or any combination of the aforementioned ranges, or any saturation value within the aforementioned ranges. In specific implementations, the hue and lightness values ​​can be combined to adjust the saturation of the fragrance beads to give them a powdery appearance, creating a macaron-colored appearance.

[0033] As a preferred embodiment, the saturation of the appearance color of the fragrance beads is 20-40%, which is suitable for forming macaron colors with light hues, such as pink, light red, pink yellow, light yellow, pink green, light green, milky white and other light hues of macaron colors. This type of hue has a more comfortable visual experience and can better attract consumers.

[0034] In one embodiment, the lightness value required to create a macaron-like appearance for the fragrance beads can be 50-100%, 60-100%, 70-100%, any combination of the aforementioned ranges, or any value within the aforementioned ranges. When the hue and saturation are fixed, a higher lightness value results in a brighter color, and vice versa. In practice, the lightness value can be adjusted based on the hue and saturation to create a soft, comfortable, and eye-catching appearance, thereby increasing consumer attention.

[0035] The macaron-colored appearance of the fragrance beads is formed due to the selection and addition of pigments of different hues, mainly due to the presence of microbubbles in the beads, especially the adjustment of their saturation and lightness values. That is, the presentation of the macaron color effect is closely related to the content of microbubbles in the beads. This is because, when the beads contain microbubbles, the microbubbles can further disperse the pigment, reducing its concentration on the bubble surface, thereby reducing the purity of the color. Just like an inflated balloon, its apparent color decreases as the balloon expands, the pigment concentration decreases, and the saturation gradually decreases. However, during the expansion process, its surface smoothness will increase, and the lightness value will increase, ultimately forming a matte feeling. Therefore, when the pigment or pigment content in the fragrance beads is fixed, the volume proportion of the microbubbles in the fragrance beads will directly affect its appearance color effect. The larger the volume proportion of the microbubbles, the stronger the matte feeling formed.

[0036] However, when the volume proportion of microbubbles is larger, the hardness of the fragrance beads will decrease, and the decrease in the hardness of the beads will make them easy to break during the collision, thereby making the beads incomplete or forming defects, resulting in poor appearance. In this regard, in one embodiment, the volume proportion of microbubbles in the beads can be 5-75%, or 10-50%, or 15-40%, or any combination of the foregoing ranges, or a volume proportion of any value in the foregoing ranges. When the volume proportion of microbubbles in the beads is the aforementioned ratio, the saturation and lightness value of the appearance color can be within a better range, with a macaron color appearance, and at the same time, the hardness of the beads can be stronger, avoiding the breakage of the beads during bottling and transportation, and having a better appearance effect.

[0037] In a preferred embodiment, when the volume proportion of microbubbles in the fragrance beads is 15-40%, the saturation of the color of the beads can be lower, the brightness value can be higher, and the beads appear to be macaron colors, and the hardness of the beads is greater than 5N.

[0038] In addition to the microbubble volume fraction affecting the bead's color and hardness, the effective diameter and uniformity of the microbubbles also influence the bead's color and hardness. Given a fixed microbubble volume fraction, a smaller effective diameter and higher uniformity of dispersion result in a more uniform macaron color on the bead's surface, a more beautiful color, and a higher hardness. Conversely, a larger effective diameter and lower uniformity of dispersion result in a more uneven macaron color and a poorer color appearance, while also decreasing bead hardness. This is because a smaller effective diameter leads to a more uniform dispersion, and tiny microbubbles are less likely to rupture, preventing surface defects. This results in a finer surface texture, a higher lightness value while reducing saturation, and a more pronounced macaron color. Furthermore, the difficulty of rupturing tiny microbubbles contributes to a higher hardness.

[0039] In one embodiment, the effective diameter of the microbubbles is 100 nm to 5000 μm, or 1 μm to 2000 μm, or 100 μm to 1000 μm, or a combination of the foregoing ranges, or any value within the foregoing ranges. Microbubbles with the foregoing effective diameters are more evenly dispersed within the beads, resulting in a better macaron color and greater hardness.

[0040] In a preferred embodiment, the effective diameter of the microbubbles in the fragrance beads is 100 μm to 1000 μm. Within the range of this effective diameter, the macaron color appearance of the bead surface is better, the hardness of the beads is better, the breakage rate during bottling and transportation is small, and the overall appearance of the beads is good.

[0041] The present invention also discloses a method A for preparing fragrance beads. The fragrance beads produced by this method have the aforementioned macaron-colored appearance. Specifically, microbubbles are incorporated into the beads by chemically generating gas, thereby altering the saturation and brightness of the beads' color to create a macaron-colored appearance. In this method, the principle for incorporating microbubbles into the beads is as follows: gas-generating additives A and B, along with a gas trapping agent for gas capture, are added to the material of the fragrance beads. The generated gas forms microbubbles that are evenly dispersed in the molten material. After cooling and solidification, the fragrance beads containing microbubbles are obtained.

[0042] In one embodiment, the preparation method A of the fragrance beads comprises the following preparation steps:

[0043] Step A1. Prepare the raw materials for the fragrance beads according to a specific ratio. These raw materials include a base material, a forming agent, a fragrance, a gas trapping agent, additives A and B, a pigment, and a coloring matter. Additive A can thermally decompose to generate gas or chemically react with additive B to generate gas. Furthermore, to facilitate the reaction between additives A and B, an appropriate amount of water can be added to dissolve additives A and B to form a solution, facilitating their dispersion and reaction. Furthermore, an antimicrobial or bacteriostatic agent can be added to the raw materials as needed for antibacterial or bactericidal effects.

[0044] Step A2. First, heat the base material to a molten state, add the forming agent while stirring, and stir to fully mix the forming agent and the molten base material; then add the gas capture agent and stir to mix; then add the fragrance, pigment / (and antibacterial agent or antimicrobial agent) and stir to mix; then slowly add the aqueous solution of auxiliary agent A in batches and stir to mix; then slowly add the aqueous solution of auxiliary agent B in batches and stir to mix to allow auxiliary agent A and auxiliary agent B to fully react to obtain a mixture containing microbubbles.

[0045] Step A3. Adjust the temperature of the mixture, granulate it through a granulator, and cool it into shape to obtain fragrance beads with macaron color effect.

[0046] In this embodiment, by adding auxiliary agents A and B for generating gas, and a gas capture agent for capturing gas to form microbubbles to the base material, the prepared fragrance beads can contain microbubbles with a higher volume proportion, thereby making their appearance appear macaron color, having a better sensory effect and being able to better attract consumers.

[0047] In this embodiment, in step A3, the temperature of the mixture directly affects its viscosity, and thus its gas holdup. This is because, as the temperature increases, the viscosity of the mixture decreases. The lower the viscosity and the higher the temperature, the easier it is for gas to escape from the mixture, resulting in a decrease in gas holdup, which in turn affects the saturation and brightness of the bead appearance. Conversely, the lower the temperature, the greater the viscosity of the mixture, making it more difficult for gas to escape, and the gas holdup increases. However, excessively low temperatures can easily lead to uneven gas distribution, the formation of large bubbles, a decrease in hardness, an increase in the microbubble rupture rate, and a reduction in the appearance of the beads. Furthermore, excessively low temperatures can easily cause tailing during granulation, preventing the beads from forming hemispherical pellets and reducing their appearance. In this regard, in a preferred embodiment, in step A3, by adjusting the temperature of the mixture to 50-75°C, or 55-60°C, or a combination of the aforementioned temperature ranges, or a temperature of any number in the aforementioned ranges, the gas content in the mixture can be increased, and the volume proportion of the microbubbles in the prepared beads is high and the distribution is uniform, and no tailing phenomenon occurs during the granulation process, and the formed beads are regular and smooth.

[0048] In a preferred embodiment, in the preparation method A of the fragrance beads, the base material can be a combination of one or more of ethylene oxide copolymer, propylene oxide copolymer, and ethylene oxide / propylene oxide copolymer. The weight-average molecular weight of the ethylene oxide copolymer, propylene oxide copolymer, and ethylene oxide / propylene oxide copolymer is 1,500 to 20,000, and it has good water solubility and molding effect, and can serve as a good carrier for fragrances and other auxiliary additives.

[0049] The molding agent can promote the molding of the material during granulation. In a preferred embodiment, the molding agent is a cationic structure. The molding agent with the cationic structure can synergize with the clothing fibers to absorb the fragrance and fragrance microcapsules dissolved in water, thereby having a long-lasting fragrance effect.

[0050] In a preferred embodiment, the cationic structure forming agent is selected from a combination of one or more of polyethylene glycol stearate, plant-based modified ester quaternary ammonium salt, plant-based modified imidazoline quaternary ammonium salt, plant-based modified amide salt, cationic modified starch, cationic modified cellulose, or hemicellulose, which can have a better fragrance retention effect. It should be noted that the plant-based modified ester quaternary ammonium salt, plant-based modified imidazoline quaternary ammonium salt, plant-based modified amide salt, cationic modified starch, cationic modified cellulose, or hemicellulose are all purchased from Nanfeng County Daxin Technology Co., Ltd.

[0051] In a preferred embodiment, in the preparation method A of the fragrance beads, the auxiliary agent A can be a combination of one or more of water-soluble alkaline earth metal carbonates, water-soluble alkaline earth metal bicarbonates, water-soluble alkaline earth metal sulfites, and water-soluble alkaline earth metal bisulfites; the auxiliary agent B can be an inorganic acid or organic acid with a stronger acidity than carbonic acid and sulfurous acid, wherein the inorganic acid can be an inorganic acid such as silicic acid, metasilicic acid, and phosphoric acid; and the organic acid can be an organic acid such as acetic acid, citric acid, and oxalic acid that is stronger than carbonic acid or sulfurous acid. During the preparation process, the auxiliary agent A is easily decomposed by heat, generating gas, which facilitates the formation of microbubbles in the beads; the added auxiliary agent B can chemically react with the incompletely decomposed auxiliary agent A to generate gas, thereby completing the reaction of the auxiliary agent A and generating more gas.

[0052] To prevent gas from overflowing and ensure uniform dispersion of microbubbles, a porous powdered material is added. This powdered material does not melt during the preparation process and is dispersed in the molten mixture as a solid phase, forming gas nuclei for gas accumulation and trapping the gas. Furthermore, by uniformly dispersing the gas-capturing agent throughout the molten mixture—that is, by uniformly dispersing the gas nuclei within the molten material—the resulting microbubbles are evenly dispersed throughout the molten material, resulting in a scented bead with a lower saturation and higher brightness, exhibiting a macaron-like color.

[0053] In a preferred embodiment, the gas capture agent can be one or more combinations of porous materials such as silica, kaolin, bentonite, clay, natural zeolite, molecular sieve, amorphous metal oxide, nano-aluminum oxide, nano-magnetic iron oxide, modified coke powder, modified fly ash, modified coffee grounds, modified cellulose, and modified starch. Due to their porous structure and large specific surface area, these materials can better gather gases during the preparation process, dispersing them in the molten mixture in the form of microbubbles. The modified coke powder, modified fly ash, modified coffee grounds, modified cellulose, and modified starch are prepared by chemical or biological methods to form loose, porous, and high-specific-surface-area powders, thereby enabling them to act as gas capture agents.

[0054] Since the particle size and specific surface area of ​​the gas capture agent will directly affect the formation of microbubbles and the uniformity of their dispersion in the beads, generally speaking, when the amount of gas capture agent added is determined, the finer the particle size of the gas capture agent, the better its dispersion in the material, the more uniform the microbubbles formed, and the better the macaron color effect of the beads. The larger the specific surface area, the stronger its gas capture ability, the higher the volume proportion of microbubbles in the beads, the larger the effective diameter of the microbubbles, and the better the appearance effect. However, when the effective diameter of the microbubbles is too large, they are prone to rupture, causing defects on the surface of the beads. Therefore, in order to obtain fragrance beads with macaron color and complete appearance, the particle size of the gas capture agent can be 10 to 1000 nm, or 10 to 100 nm, or 10 to 50 nm, or a combination of the above particle size ranges, or a particle size of any value within the above range; the specific surface area of ​​the gas capture agent can be 1 to 1000 m 2 / g, or 1 to 500 m 2 / g, or 100-300m 2 / g, or a combination thereof, or a specific surface area of ​​any value within the aforementioned range. The gas scavenger with the aforementioned particle size range and specific surface area has good dispersibility in the mixture and can ensure that the formed microbubbles are evenly dispersed in the beads.

[0055] In a preferred embodiment, the particle size of the gas capture agent is 10-50 nm and the specific surface area is 100-300 m 2 / g, it has good dispersion uniformity in the molten mixture, the formed microbubbles can be evenly dispersed in the beads, and the effective diameter of the microbubbles is between 100 and 1000 μm. The apparent color of the beads has low saturation and high lightness, presents a macaron color, and has good hardness.

[0056] In a preferred embodiment, the raw materials for preparing the fragrance beads include, by weight, 20-95 parts of a base material, 0.1-25 parts of a forming agent, 0.01-50 parts of a fragrance, 0.001-10 parts of an antibacterial agent, 0.001-10 parts of a gas trap, 0.001-10 parts of an auxiliary agent A, 0.001-10 parts of an auxiliary agent B, 0.0001-10 parts of a pigment, and 0.01-10 parts of water. The fragrance beads prepared from this raw material exhibit excellent fragrance retention and antibacterial properties, and have a macaron-colored appearance.

[0057] The present invention also discloses another method B for preparing fragrance beads. The fragrance beads produced by this method have a macaron-colored appearance. This method introduces gas into a molten material and adds a gas capture agent to capture the gas, forming microbubbles, thereby achieving the macaron-colored appearance on the bead surface. In one embodiment, the preparation method specifically includes the following preparation steps:

[0058] Step B1. Prepare the base material, forming agent, gas capture agent, fragrance, pigment and antibacterial agent (the antibacterial agent can be added optionally) according to the ratio;

[0059] Step B2. First, add the base material to the reactor and heat it to a molten state; while stirring, add the forming agent, gas capture agent, fragrance, antibacterial agent, pigment, and stir evenly to obtain a mixture;

[0060] Step B3. Introduce gas into the bottom of the reactor and stir evenly to disperse the gas evenly in the mixture;

[0061] Step B4. Adjust the temperature of the mixture, granulate, and cool to obtain macaron-style fragrance beads.

[0062] In this embodiment, microbubbles are formed in the fragrance beads by inputting gas, so that the apparent color of the fragrance beads is macaron color, which can better attract consumers.

[0063] In this embodiment, the base material, forming agent, gas capture agent, fragrance, antibacterial agent and pigment are the same as those in the aforementioned preparation method A of the fragrance beads. To avoid redundancy, they are not described in detail here. For details, please refer to the aforementioned preparation method A of the fragrance beads.

[0064] In this embodiment, in order to better disperse the introduced gas in the mixture, the stirring paddle used is a vapor-liquid dispersion stirring paddle, that is, the blades of the stirring paddle are blades with special shapes, such as blades with asymmetric or symmetrical parabolic shapes, or blades with serrations on the edges of the blades. Through the stirring action of the vapor-liquid dispersion stirring paddle, the introduced gas can be broken up and evenly dispersed in the molten mixture to form microbubbles.

[0065] In this embodiment, it should be noted that in step B4, the temperature of the mixed material must also be controlled to ensure that it has an appropriate viscosity to facilitate gas capture and molding during granulation. As a preferred embodiment, in step B4, adjusting the temperature of the mixed material to 50-75°C achieves better molding results and gas retention.

[0066] To further illustrate the fragrance beads and preparation method thereof provided by the present invention, the following examples are provided.

[0067] Example 1

[0068] Disclosed are fragrance beads, which have a macaron-colored appearance. Microbubbles are evenly dispersed within the beads, with the volume of the microbubbles accounting for 75% of the beads and an effective diameter of 5000 μm.

[0069] The raw materials for preparing the fragrance beads are composed of the following components by weight: 95 parts base material, 25 parts forming agent, 50 parts fragrance, 10 parts antibacterial agent, 10 parts gas capture agent, 10 parts auxiliary agent A, 10 parts auxiliary agent B, 10 parts pigment, and 10 parts water. The particle size of the gas capture agent is 10nm, and its specific surface area is 1000m 2 / g.

[0070] The fragrance beads are prepared by the following steps:

[0071] Step A1. Take the raw materials according to the ratio;

[0072] Step A2. First, heat the base material to a molten state. While stirring, add the forming agent and stir to thoroughly mix the forming agent and the molten base material. Then, add the gas scavenger and stir to mix thoroughly. Then, add the fragrance, pigment, and antibacterial agent and stir to mix thoroughly. Then, slowly add the aqueous solution of additive A in batches and stir to mix thoroughly. Then, slowly add the aqueous solution of additive B in batches and stir to mix thoroughly. Allow additives A and B to react thoroughly to obtain a mixture containing microbubbles.

[0073] Step A3: Adjust the temperature of the material to 75°C, granulate it using a granulator, and cool it into shape to obtain fragrance beads with a macaron color effect.

[0074] Example 2

[0075] A fragrance-retaining bead has a macaron-colored appearance and is uniformly dispersed with microbubbles. The volume of the microbubbles in the bead accounts for 5%, and the effective diameter of the microbubbles is 100 nm.

[0076] The raw materials for preparing the fragrance beads are composed of the following components by weight: 20 parts base material, 0.1 parts forming agent, 0.01 parts fragrance, 0.001 parts antibacterial agent, 0.001 parts gas capture agent, 0.001 parts auxiliary agent A, 0.001 parts auxiliary agent B, 0.0001 parts pigment, and 0.01 parts water. The particle size of the gas capture agent is 1000nm, and its specific surface area is 1m 2 / g.

[0077] The preparation method of the fragrance beads is basically the same as that of Example 1, except that the temperature of the material body is adjusted to 50° C. in step A3.

[0078] Example 3

[0079] Disclosed are fragrance beads, which have a macaron-colored appearance and are uniformly dispersed with microbubbles. The volume of the microbubbles in the beads accounts for 10%, and the effective diameter of the microbubbles is 1 μm.

[0080] The raw materials for preparing the fragrance beads are composed of the following components by weight: 60 parts base material, 10 parts forming agent, 30 parts fragrance, 5 parts antibacterial agent, 5 parts gas capture agent, 8 parts auxiliary agent A, 8 parts auxiliary agent B, 5 parts pigment, and 6 parts water. The particle size of the gas capture agent is 20nm, and its specific surface area is 800m 2 / g.

[0081] The preparation method of the fragrance beads is basically the same as that of Example 1, except that the temperature of the material body is adjusted to 60° C. in step A3.

[0082] Example 4

[0083] Disclosed are fragrance beads, which have a macaron-colored appearance and are uniformly dispersed with microbubbles. The volume of the microbubbles in the beads accounts for 50%, and the effective diameter of the microbubbles is 100 μm.

[0084] The raw materials for preparing the fragrance beads are composed of the following components by weight: 55 parts base material, 20 parts forming agent, 20 parts fragrance, 3 parts antibacterial agent, 8 parts gas capture agent, 5 parts auxiliary agent A, 5 parts auxiliary agent B, 7 parts pigment, and 8 parts water. The particle size of the gas capture agent is 100nm, and its specific surface area is 300m 2 / g.

[0085] The preparation method of the fragrance beads is basically the same as that of Example 1, except that the temperature of the material body is adjusted to 55° C. in step A3.

[0086] Example 5

[0087] Disclosed are fragrance beads, which have a macaron-colored appearance and are uniformly dispersed with microbubbles. The volume of the microbubbles in the beads accounts for 10%, and the effective diameter of the microbubbles is 1000 μm.

[0088] The raw materials for preparing the fragrance beads are composed of the following components by weight: 40 parts base material, 10 parts forming agent, 10 parts fragrance, 3 parts antibacterial agent, 1 part gas capture agent, 4 parts auxiliary agent A, 4 parts auxiliary agent B, 3 parts pigment, and 2 parts water. The particle size of the gas capture agent is 50nm, and its specific surface area is 500m 2 / g.

[0089] The preparation method of the fragrance beads is basically the same as that of Example 1, except that the temperature of the material body is adjusted to 65° C. in step A3.

[0090] Example 6

[0091] Disclosed are fragrance beads, which have a macaron-colored appearance and are uniformly dispersed with microbubbles. The volume of the microbubbles in the beads accounts for 15%, and the effective diameter of the microbubbles is 100 μm.

[0092] The raw materials for preparing the fragrance beads are composed of the following components by weight: 70 parts base material, 5 parts forming agent, 20 parts fragrance, 2 parts antibacterial agent, 7 parts gas capture agent, 2 parts auxiliary agent A, 3 parts auxiliary agent B, 6 parts pigment, and 3 parts water. The particle size of the gas capture agent is 800nm, and its specific surface area is 300m 2 / g.

[0093] The preparation method of the fragrance beads is basically the same as that of Example 1, except that the temperature of the material body is adjusted to 62° C. in step A3.

[0094] Example 7

[0095] Disclosed are fragrance beads, which have a macaron-colored appearance and are uniformly dispersed with microbubbles. The volume of the microbubbles in the beads accounts for 55%, and the effective diameter of the microbubbles is 800 μm.

[0096] The raw materials for preparing the fragrance beads are composed of the following components by weight: 55 parts base material, 20 parts forming agent, 20 parts fragrance, 3 parts antibacterial agent, 8 parts gas capture agent, and 7 parts pigment. Among them, the particle size of the gas capture agent is 50nm and its specific surface area is 100m 2 / g.

[0097] The fragrance beads are prepared by the following steps:

[0098] Step B1. Prepare the base material, forming agent, gas capture agent, fragrance, pigment and antibacterial agent according to the ratio;

[0099] Step B2. First, add the base material to the reactor and heat it to a molten state; while stirring, add the forming agent, gas capture agent, fragrance, antibacterial agent, pigment, and stir evenly to obtain a mixture;

[0100] Step B3. Introduce gas into the bottom of the reactor and stir evenly to disperse the gas evenly in the mixture;

[0101] Step B4. Adjust the temperature of the mixture to 50°C, granulate, and cool to obtain macaron-style fragrance beads.

[0102] Example 8

[0103] Disclosed are fragrance beads, which have a macaron-colored appearance and are uniformly dispersed with microbubbles. The volume of the microbubbles in the beads accounts for 70%, and the effective diameter of the microbubbles is 500 μm.

[0104] The raw materials for preparing the fragrance beads are composed of the following components by weight: 80 parts of base material, 10 parts of forming agent, 40 parts of fragrance, 5 parts of antibacterial agent, 8 parts of gas capture agent, and 5 parts of pigment. Among them, the particle size of the gas capture agent is 50nm and its specific surface area is 500m 2 / g.

[0105] The preparation method of the fragrance beads is basically the same as that of Example 7, except that in step B4, the temperature of the mixture is adjusted to 60°C.

[0106] Example 9

[0107] Disclosed are fragrance beads, which have a macaron-colored appearance and are uniformly dispersed with microbubbles. The volume of the microbubbles in the beads accounts for 40%, and the effective diameter of the microbubbles is 100 μm.

[0108] The raw materials for preparing the fragrance beads are composed of the following components by weight: 65 parts of base material, 25 parts of forming agent, 50 parts of fragrance, 2 parts of antibacterial agent, 10 parts of gas capture agent, and 10 parts of pigment. Among them, the particle size of the gas capture agent is 50nm and its specific surface area is 500m 2 / g.

[0109] The preparation method of the fragrance beads is basically the same as that of Example 7, except that in step B4, the temperature of the mixture is adjusted to 65°C.

[0110] Comparative Example 1

[0111] A fragrance bead, the raw materials for preparing the fragrance bead are composed of the following components by weight: 95 parts of base material, 25 parts of forming agent, 50 parts of fragrance, 10 parts of antibacterial agent, 10 parts of gas capture agent, and 10 parts of pigment. The particle size of the gas capture agent is 50nm, and its specific surface area is 500m 2 / g.

[0112] The fragrance beads are prepared by the following steps:

[0113] Step 1. Take the raw materials according to the ratio;

[0114] Step 2. First, heat the base material to a molten state, add the forming agent while stirring, and stir to fully mix the forming agent and the molten base material; then add the gas capture agent and stir to mix; then add the fragrance, pigment and antibacterial agent and stir to mix;

[0115] Step 3. Adjust the temperature of the material to 75°C, granulate it through a granulator, and cool it into shape to obtain the fragrance beads.

[0116] Comparative Example 2

[0117] The invention discloses a fragrance-retaining bead. The raw materials for preparing the fragrance-retaining bead are composed of the following components in parts by weight: 95 parts of base material, 25 parts of forming agent, 50 parts of fragrance, 10 parts of antibacterial agent, 10 parts of auxiliary agent A, 10 parts of auxiliary agent B, 10 parts of pigment and 10 parts of water.

[0118] The fragrance beads are prepared by the following steps:

[0119] Step 1. Take the raw materials according to the ratio;

[0120] Step 2. First, heat the base material to a molten state, add the forming agent while stirring, and stir to fully mix the forming agent and the molten base material; then add the fragrance, pigment, and antibacterial agent, and stir to mix; then slowly add the aqueous solution of auxiliary agent A in batches, and stir to mix; then slowly add the aqueous solution of auxiliary agent B in batches, and stir to mix to allow auxiliary agents A and B to fully react, thereby obtaining a mixture containing microbubbles;

[0121] Step 3. Adjust the temperature of the material to 75°C, granulate it through a granulator, and cool it into shape to obtain the fragrance beads.

[0122] Comparative Example 3

[0123] A fragrance bead, the raw materials for preparing the fragrance bead are composed of the following components by weight: 95 parts of base material, 25 parts of forming agent, 50 parts of fragrance, 10 parts of antibacterial agent, 10 parts of gas capture agent, 10 parts of auxiliary agent A, 10 parts of auxiliary agent B, 10 parts of pigment, and 10 parts of water. The particle size of the gas capture agent is 50nm, and its specific surface area is 500m 2 / g.

[0124] The fragrance beads are prepared by the following steps:

[0125] Step 1. Take the raw materials according to the ratio;

[0126] Step 2. First, heat the base material to a molten state, add the forming agent while stirring, and stir to fully mix the forming agent and the molten base material; then add the gas capture agent and stir to mix; then add the fragrance, pigment and antibacterial agent and stir to mix; then slowly add the aqueous solution of auxiliary agent A in batches and stir to mix; then slowly add the aqueous solution of auxiliary agent B in batches and stir to mix to allow auxiliary agents A and B to fully react to obtain a mixture containing microbubbles;

[0127] Step 3. Adjust the temperature of the material to 95°C, granulate it through a granulator, and cool it into shape to obtain the fragrance beads.

[0128] It should be noted that the particle size and specific surface area of ​​the gas trapping agent are average values. It should be further noted that the volume fraction of microbubbles is the average value calculated for the same batch of fragrance beads, and the effective particle size of microbubbles is the average value of microbubbles within the same batch of beads. It should also be noted that the pigment added in Examples 1-9 and Comparative Examples 1-3 is the same pigment.

[0129] The appearance saturation, lightness and hardness of the fragrance beads described in Examples 1-9 and Comparative Examples 1-3 were tested. The lightness value was tested using an NR200 horizontal colorimeter, the saturation test was tested using an NR200 horizontal colorimeter, and then the corresponding value was found in the Photoshop color palette for determination. The hardness was tested using a YD-1 tablet hardness tester. At the same time, the appearance of the fragrance beads was observed. The specific test results and the apparent observation results are shown in Table 1. It should be noted that the saturation and lightness values ​​are both average values ​​calculated from multiple test results. In addition, the volume percentage of the microbubbles was measured by the volume method; the effective diameter of the microbubbles was obtained by randomly testing the diameters of multiple microbubbles in the cross section of the beads using a scanning electron microscope, and the average value was obtained based on the diameters of the multiple microbubbles.

[0130] As shown in Table 1, the fragrance beads described in Examples 1-9 exhibited a macaron color with a saturation between 0% and 70% and a lightness between 50% and 100%. Their hardness was greater than or equal to 5N, making them easy to package and transport. However, the fragrance beads described in Comparative Examples 1 and 3 lacked microbubbles, resulting in higher saturation and lower lightness, resulting in a normal color. Although Comparative Example 2 contained microbubbles, the lack of a gas trap resulted in an uneven distribution of microbubbles and a larger effective diameter, preventing the fragrance beads from exhibiting a macaron color.

[0131] In summary, the fragrance beads disclosed in the present invention can obtain macaron-colored fragrance beads by adjusting the saturation of the beads to 0-70% and the lightness value to 50-100%; by adjusting the content of microbubbles in the beads, the saturation and lightness value of the beads can be adjusted, thereby obtaining macaron-colored fragrance beads.

[0132] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A kind of fragrance beads, It is characterized in that The appearance color of the fragrance beads is a macaron color system, the saturation of the appearance color is 0-70%, and the lightness value is 50-100%.

2. The fragrance beads according to claim 1, It is characterized in that The fragrance beads contain microbubbles, and the volume of the microbubbles accounts for 15-40% of the volume of the beads.

3. The fragrance beads according to claim 2, It is characterized in that The effective diameter of the microbubbles is 100 μm to 1000 μm.

4. The fragrance beads according to claim 1, It is characterized in that The saturation of the appearance color of the fragrance beads is 20-40%, and the brightness is 70-100%.

5. A method for preparing fragrance beads A, wherein the fragrance beads are the fragrance beads according to any one of claims 1 to 4, It is characterized in that The method comprises the following steps: Step A1. Take base material, forming agent, fragrance, gas capture agent, auxiliary agent A, auxiliary agent B, and pigment according to the ratio; Step A2. Heat the base material to a molten state, add the molding agent while stirring, stir to fully mix the molding agent with the molten base material; add the gas capture agent, stir to mix; then add the flavor and pigment, stir to mix; add the aqueous solution of the auxiliary agent A in batches, stir to mix; add the aqueous solution of the auxiliary agent B in batches, stir to mix, so that the auxiliary agent A and the auxiliary agent B fully react to obtain a mixture containing microbubbles; Step A3. Adjust the temperature of the mixture, granulate, and cool and shape to obtain fragrance beads with macaron color effect.

6. The preparation method A of the fragrance beads according to claim 5, It is characterized in that The base material includes one or more combinations of ethylene oxide copolymers, propylene oxide copolymers, and ethylene oxide / propylene oxide copolymers.

7. The preparation method A of the fragrance beads according to claim 5, It is characterized in that The auxiliary agent A includes one or more combinations of alkaline earth metal carbonates, water-soluble alkaline earth metal bicarbonates, water-soluble alkaline earth metal sulfites and water-soluble alkaline earth metal bisulfites.

8. The preparation method A of the fragrance beads according to claim 5, It is characterized in that In step A3, the temperature of the mixture is adjusted to 50-75°C.

9. The preparation method A of the fragrance beads according to claim 5, It is characterized in that The gas capture agent is a powder material with a porous structure, a particle size of 10 to 1000 nm, and a specific surface area of ​​1 to 1000 m2 / g.

10. A method B for preparing fragrance beads, wherein the fragrance beads are the fragrance beads according to any one of claims 1 to 4, It is characterized in that The method comprises the following steps: Step B1. Take the base material, forming agent, gas capture agent, fragrance, pigment and antibacterial agent according to the ratio; Step B2. Heat the base material to a molten state; add a molding agent, a gas capture agent, a fragrance, an antibacterial agent, and a pigment while stirring, and stir evenly to obtain a mixture; Step B3. Introduce gas into the mixture and stir evenly to make the gas evenly dispersed in the mixture; Step B4. Adjust the temperature of the mixture to 50-75° C., granulate, and after cooling, obtain macaron-style fragrance beads.

Images