Cross-color-preventing fragrance-retaining bead and preparation method thereof
By using a multi-layered anti-color bleeding and fragrance-retaining bead design and controlling the release time, the problem of functional decay when the fragrance beads combine with anionic dyes is solved, achieving effective anti-color bleeding and long-lasting fragrance, and simplifying the laundry process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-04-10
AI Technical Summary
When existing fragrance beads are combined with anionic dyes, the effectiveness of the functional components is greatly reduced, resulting in a complicated and inconvenient laundry process.
The multi-layered anti-color-transfer and fragrance-retaining beads encapsulate fragrance microcapsules and cationic anti-color-transfer agents through outer and inner encapsulation films, controlling the release time to prevent the combination of cationic and anionic components, thereby exerting anti-color-transfer and fragrance-retaining functions respectively.
It effectively prevents dye from bleeding during the washing process while maintaining the long-lasting fragrance of the perfume, simplifying the washing steps and improving convenience.
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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of fragrance-retaining beads, and particularly relates to a color-bleeding-preventing fragrance-retaining bead and a preparation method thereof. BACKGROUND
[0002] The color-bleeding-preventing sheet is a cationic fiber obtained by modification treatment, which functions to combine with anionic dyes dropped from clothes through positive and negative charges, thereby avoiding the anionic dyes from being attached to clothes of other colors. The fragrance-retaining bead is a product mainly containing perfume, which is attached to clothes and releases perfume to make clothes retain fragrance for a long time. The fragrance-retaining bead is used in the same way as the color-bleeding-preventing sheet, i.e., put into a washing machine together with clothes during washing. With the increasing variety of washing products, people have to put not only washing agents but also fragrance-retaining beads, softening agents, color-bleeding-preventing sheets and other products with different functions into the washing machine during washing, which makes the washing process more complicated. If the fragrance-retaining bead is endowed with more functions, the convenience of life can be improved. However, since the fragrance-retaining bead contains not only perfume but also other anionic components (such as surfactants), if cationic color-bleeding-preventing components are directly added to the fragrance-retaining bead, part of the cationic color-bleeding-preventing components will combine with the anionic components, which greatly reduces the effects of the two functional components. SUMMARY
[0003] In view of the above deficiencies of the prior art, the present application aims to provide a color-bleeding-preventing fragrance-retaining bead and a preparation method thereof, which aims to increase the functionality of the fragrance-retaining bead to improve the convenience during washing.
[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: The present application provides a color-bleeding-preventing fragrance-retaining bead, which comprises a first encapsulating film and a second encapsulating film arranged in sequence from the outside to the inside; the second encapsulating film is wrapped with perfume microcapsules; a cationic color-bleeding-preventing agent is arranged between the first encapsulating film and the second encapsulating film; the preparation raw materials of the first encapsulating film and the second encapsulating film are water-soluble materials; the core material of the perfume microcapsules comprises perfume and anionic surfactants; the cationic color-bleeding-preventing agent comprises at least one of cationic guar gum and cationic polyacrylamide; the dissolution time of the first encapsulating film in water is 2-4 minutes; and the dissolution time of the second encapsulating film in water is 1-1.5 minutes.
[0005] The color-bleeding-preventing fragrance-retaining bead, wherein the cationic color-bleeding-preventing agent comprises cationic guar gum and cationic polyacrylamide in a mass ratio of 1:(1-5).
[0006] The color-bleeding-preventing fragrance-retaining bead, wherein the wall material of the perfume microcapsules comprises melamine resin and plant protein.
[0007] The anti-color-bleeding and fragrance-retaining pearl, wherein the plant protein comprises at least one of soybean protein and pea protein.
[0008] The anti-color-bleeding and fragrance-retaining pearl, wherein the water-soluble material is selected from PVA or polyethylene oxide.
[0009] The anti-color-bleeding and fragrance-retaining pearl, wherein in the fragrance microcapsule, the mass ratio of the melamine resin and the plant protein is 1:(3-7).
[0010] The anti-color-bleeding and fragrance-retaining pearl, wherein in the fragrance microcapsule, the mass ratio of the fragrance and the anionic surfactant is 1:(2-3).
[0011] The second aspect of the present application provides a preparation method of the anti-color-bleeding and fragrance-retaining pearl, for preparing the anti-color-bleeding and fragrance-retaining pearl as described above, comprising the following steps: S1. packaging the fragrance microcapsule with the second encapsulating film to obtain an intermediate material; S2. mixing the intermediate material and the cationic anti-color-bleeding agent, and then packaging the intermediate material and the cationic anti-color-bleeding agent with the first encapsulating film, stirring uniformly to obtain the anti-color-bleeding and fragrance-retaining pearl.
[0012] The preparation method of the anti-color-bleeding and fragrance-retaining pearl, wherein the preparation method of the fragrance microcapsule comprises the following steps: adding the melamine resin, the plant protein, the fragrance and the anionic surfactant into water, stirring uniformly at 50 DEG C under high speed, drying to obtain the fragrance microcapsule.
[0013] Beneficial effects: the present application provides an anti-color-bleeding and fragrance-retaining pearl, the fragrance and the anionic component are wrapped by the microcapsule, and then the fragrance microcapsule and the cationic anti-color-bleeding agent are sequentially encapsulated by the second encapsulating film and the first encapsulating film to form a multi-layer structure, which can well avoid the combination of the cationic component and the anionic component in the fragrance-retaining pearl. In use, the cationic anti-color-bleeding agent is released first to play the anti-color-bleeding function, and the microcapsule can be attached to the clothes, and then the fragrance component is released in the subsequent washing process, so as not to interfere with each other. DETAILED DESCRIPTION
[0014] The present application provides an anti-color-bleeding and fragrance-retaining pearl and a preparation method thereof, in order to make the purpose, technical scheme and effect of the present application more clear and explicit, the following examples are used to further describe the present application in detail. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.
[0015] The first aspect of the present application provides a color-bleeding-preventing fragrance-retaining bead, comprising a first encapsulating film and a second encapsulating film arranged in sequence from outside to inside; the second encapsulating film is wrapped with fragrance microcapsules; a cationic color-bleeding-preventing agent is arranged between the first encapsulating film and the second encapsulating film; the first encapsulating film and the second encapsulating film are made of water-soluble materials; the core material of the fragrance microcapsules comprises fragrance and anionic surfactant; the cationic color-bleeding-preventing agent comprises at least one of cationic guar gum and cationic polyacrylamide; the first encapsulating film has a dissolution time of 2-4 minutes in water; and the second encapsulating film has a dissolution time of 1-1.5 minutes in water.
[0016] The dissolution time of the controlled first encapsulating film and second encapsulating film in water is the dissolution time, so that the release time of the functional components of the color-bleeding-preventing fragrance-retaining bead can be matched with the washing time of the washing machine. The cationic color-bleeding-preventing agent is mainly used to combine with the anionic dyes that fall off during washing, thereby avoiding the combination of the anionic dyes on other clothes and causing color bleeding. Therefore, it is completely released within 2-4 minutes after encountering water, which corresponds to the time when the anionic dyes fall off due to factors such as detergents during washing. After the first encapsulating film dissolves, the second encapsulating film is in contact with water, and finally the fragrance microcapsules are released. At this time, the cationic color-bleeding-preventing agent has fully played its role and is consumed, and has little effect on the anionic surfactant in the fragrance microcapsules.
[0017] The first encapsulating film and the second encapsulating film are water-soluble films. In the case of the same material, the thicker the film, the longer the dissolution time in water. The main material can be PVA, polyethylene oxide, etc.
[0018] Preferably, the cationic color-bleeding-preventing agent comprises at least one of cationic guar gum and cationic polyacrylamide. The cationic guar gum has a positive charge group on the molecular chain, which can combine with the anionic dye molecules through electrostatic interaction to form larger flocculation or insoluble complexes, thereby reducing the free and migration of dye molecules during washing, reducing the probability of entering the washing liquid, and thereby preventing the dye from staining other clothes and causing color bleeding. The cationic polyacrylamide has a positive charge group on the molecular chain, which can neutralize the charge of the negatively charged dye colloidal particles, destabilize the dye particles, and at the same time, through adsorption and bridging, connect multiple dye particles together to form larger flocs, thereby promoting the precipitation of dyes from the washing liquid and reducing their migration and staining between fabrics.
[0019] Preferably, the cationic color-bleeding-preventing agent comprises cationic guar gum and cationic polyacrylamide in a mass ratio of 1:(2-4). When the two cationic color-bleeding-preventing agents are used together, they have better color-bleeding-preventing effect.
[0020] Preferably, the wall material of the fragrance microcapsule comprises melamine resin and vegetable protein. The melamine resin and vegetable protein can impart good laundry adhesion to the fragrance microcapsule, while the wall material of the prepared fragrance microcapsule has good structural strength in water. On the one hand, the fragrance microcapsule does not release a large amount of anionic components to weaken the effect of the cationic anti-bleeding agent during laundry. On the other hand, the fragrance microcapsule can be more combined with the laundry, and the subsequent laundry is broken by friction to release the components such as fragrance, thereby playing a long-lasting fragrance effect. In addition, the melamine resin and vegetable protein are not anionic components, and will not combine with the cationic anti-bleeding agent to weaken its effect.
[0021] Preferably, the vegetable protein comprises at least one of soybean protein and pea protein. Legume protein has gelation and emulsification properties in microencapsulation delivery systems, which can further improve the shell structure.
[0022] Preferably, in the fragrance microcapsule, the mass ratio of melamine resin to vegetable protein is 1:(3-7).
[0023] Preferably, in the fragrance microcapsule, the mass ratio of fragrance to anionic surfactant is 1:(2-3).
[0024] The second aspect of the present application provides a preparation method of an anti-bleeding fragrance bead, for preparing the anti-bleeding fragrance bead as described above, comprising the following steps: S1. The fragrance microcapsule is packaged with a second encapsulating film to obtain an intermediate material; S2. The intermediate material and the cationic anti-bleeding agent are mixed, and then the intermediate material and the cationic anti-bleeding agent are packaged with a first encapsulating film, and stirred uniformly to obtain the anti-bleeding fragrance bead.
[0025] Specifically, the preparation method of the fragrance microcapsule comprises the following steps: melamine resin, vegetable protein, fragrance and anionic surfactant are added to water, and stirred uniformly at 50°C, and then dried to obtain the fragrance microcapsule.
[0026] The following further examples and comparative examples are used to illustrate the present application.
[0027] Example 1 An anti-bleeding fragrance bead, the preparation method thereof comprises the following steps: S1. The fragrance microcapsule is packaged with a second encapsulating film to obtain an intermediate material; S2. The intermediate material and the cationic anti-bleeding agent are mixed, and then the intermediate material and the cationic anti-bleeding agent are packaged with a first encapsulating film, and stirred uniformly to obtain the anti-bleeding fragrance bead. The anti-bleeding fragrance bead comprises 10 parts of cationic anti-bleeding agent and 20 parts of fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, stirring uniformly at high speed at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:3. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5; and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 2.5 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0028] Embodiment 2 An anti-color-bleeding fragrance-retaining bead, the preparation method of the bead comprises the following steps: S1. The fragrance microcapsule is packaged with the second sealing film to obtain intermediate material; S2. The intermediate material and the cationic anti-color-bleeding agent are mixed, and then the intermediate material and the cationic anti-color-bleeding agent are packaged with the first sealing film and stirred uniformly to obtain the anti-color-bleeding fragrance-retaining bead. The anti-color-bleeding fragrance-retaining bead comprises 14 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, stirring uniformly at high speed at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:3. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5; and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 4 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0029] Embodiment 3 An anti-color-bleeding fragrance-retaining bead, the preparation method of the bead comprises the following steps: S1. The fragrance microcapsule is packaged with the second sealing film to obtain intermediate material; S2. The intermediate material and the cationic anti-color-bleeding agent are mixed, and then the intermediate material and the cationic anti-color-bleeding agent are packaged with the first sealing film and stirred uniformly to obtain the anti-color-bleeding fragrance-retaining bead. The anti-color-bleeding fragrance-retaining bead comprises 14 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, stirring uniformly at high speed at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:3. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5, and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing membranes used in the embodiment are water-soluble membranes purchased, and the material is PVA. The dissolving time of the first sealing membrane in water is 3 minutes, and the dissolving time of the second sealing membrane is 1.2 minutes.
[0030] Embodiment 4 An anti-color-bleeding fragrance-retaining bead, the preparation method of which comprises the following steps: S1. packaging the fragrance microcapsule with the second sealing membrane to obtain intermediate material; S2. mixing the intermediate material and the cationic anti-color-bleeding agent, and then packaging the intermediate material and the cationic anti-color-bleeding agent with the first sealing membrane, stirring uniformly, and obtaining the anti-color-bleeding fragrance-retaining bead; The anti-color-bleeding fragrance-retaining bead comprises 10 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, stirring uniformly at high speed at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:5. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5, and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing membranes used in the embodiment are water-soluble membranes purchased, and the material is PVA. The dissolving time of the first sealing membrane in water is 2.5 minutes, and the dissolving time of the second sealing membrane is 1.2 minutes.
[0031] Embodiment 5 An anti-color-bleeding fragrance-retaining bead, the preparation method of which comprises the following steps: S1. packaging the fragrance microcapsule with the second sealing membrane to obtain intermediate material; S2. mixing the intermediate material and the cationic anti-color-bleeding agent, and then packaging the intermediate material and the cationic anti-color-bleeding agent with the first sealing membrane, stirring uniformly, and obtaining the anti-color-bleeding fragrance-retaining bead; The anti-color-bleeding fragrance-retaining bead comprises 10 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, stirring uniformly at high speed at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:1. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5, and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 2.5 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0032] Embodiment 6 An anti-color-bleeding fragrance-retaining bead, the preparation method of which comprises the following steps: S1. packaging the fragrance microcapsule with the second sealing film to obtain intermediate material; S2. mixing the intermediate material and the cationic anti-color-bleeding agent, and then packaging the intermediate material and the cationic anti-color-bleeding agent with the first sealing film, stirring uniformly, and obtaining the anti-color-bleeding fragrance-retaining bead; The anti-color-bleeding fragrance-retaining bead comprises 10 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, stirring uniformly at high speed at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:3. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5, and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 2 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0033] Embodiment 7 An anti-color-bleeding fragrance-retaining bead, the preparation method of which comprises the following steps: S1. packaging the fragrance microcapsule with the second sealing film to obtain intermediate material; S2. mixing the intermediate material and the cationic anti-color-bleeding agent, and then packaging the intermediate material and the cationic anti-color-bleeding agent with the first sealing film, stirring uniformly, and obtaining the anti-color-bleeding fragrance-retaining bead; The anti-color-bleeding fragrance-retaining bead comprises 10 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, uniformly mixing under high-speed stirring at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is a cationic guar gum. In the fragrance microcapsule, the mass ratio of the melamine resin and the vegetable protein is 1:5, and the mass ratio of the fragrance and the anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 2.5 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0034] Example 8 An anti-color-bleeding fragrance-retaining bead, the preparation method thereof comprises the following steps: S1. packaging the fragrance microcapsule with the second sealing film to obtain intermediate material; S2. mixing the intermediate material and the cationic anti-color-bleeding agent, then packaging the intermediate material and the cationic anti-color-bleeding agent with the first sealing film, and stirring uniformly to obtain the anti-color-bleeding fragrance-retaining bead; The anti-color-bleeding fragrance-retaining bead comprises 10 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, uniformly mixing under high-speed stirring at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is a cationic polyacrylamide. In the fragrance microcapsule, the mass ratio of the melamine resin and the vegetable protein is 1:5, and the mass ratio of the fragrance and the anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 2.5 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0035] Comparative Example 1 An anti-color-bleeding fragrance-retaining bead, the preparation method thereof comprises the following steps: S1. packaging the fragrance microcapsule with the second sealing film to obtain intermediate material; S2. mixing the intermediate material and the cationic anti-color-bleeding agent, then packaging the intermediate material and the cationic anti-color-bleeding agent with the first sealing film, and stirring uniformly to obtain the anti-color-bleeding fragrance-retaining bead; The anti-color-bleeding fragrance-retaining bead comprises 10 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, uniformly mixing under high-speed stirring at 50 DEG C, drying, and obtaining the fragrance microcapsule; The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:3. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5; and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 1.2 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0036] Comparative Example 2 An anti-color-bleeding fragrance-retaining bead, and a preparation method thereof, comprises the following steps: S1. The fragrance microcapsule is packaged with the second sealing film to obtain an intermediate material; S2. The intermediate material and the cationic anti-color-bleeding agent are mixed, and then the intermediate material and the cationic anti-color-bleeding agent are packaged with the first sealing film and stirred uniformly to obtain the anti-color-bleeding fragrance-retaining bead. The anti-color-bleeding fragrance-retaining bead comprises 10 parts of the cationic anti-color-bleeding agent and 20 parts of the fragrance microcapsule. The preparation method of the fragrance microcapsule comprises the following steps: adding melamine resin, vegetable protein, fragrance and anionic surfactant into water, uniformly mixing under high-speed stirring at 50 DEG C, drying, and obtaining the fragrance microcapsule. The cationic anti-color-bleeding agent is composed of cationic guar gum and cationic polyacrylamide with a mass ratio of 1:3. In the fragrance microcapsule, the mass ratio of melamine resin and vegetable protein is 1:5; and the mass ratio of fragrance and anionic surfactant is 1:2. The first and second sealing films used in the embodiment are water-soluble films purchased, and the material is PVA. The dissolving time of the first sealing film in water is 5 minutes, and the dissolving time of the second sealing film is 1.2 minutes.
[0037] The properties of the anti-color-bleeding fragrance-retaining beads prepared in the above examples and comparative examples are tested.
[0038] 1. The anti-color-bleeding effect testing method is as follows: Three different color cloth (red, orange, blue) of 60cm x 60cm were respectively put into different 2L beaker, 1 anti-bleeding fragrance bead (about 12g) and 5g detergent were added, 1L water was added to simulate the washing process after stirring, and white national standard cotton cloth was added as a washing cloth to simulate the washing for 30 minutes. After washing, the washing cloth was taken out and rinsed twice, and finally the washing cloth was dried. The dyeing of the washing cloth was observed, and the color difference before and after washing was detected by color difference instrument (5 random points were detected to calculate the average value). The smaller the color difference value, the smaller the degree of color bleeding.
[0039] 2. The dissolution time test method is as follows: at room temperature, 500mL pure water is added to a glass beaker with a volume of 1L, and the stirring paddle is inserted into the middle position of the water surface. The rotation speed of the mechanical stirring device is adjusted to 250±2 rad / min. One anti-bleeding fragrance bead (about 12g) is added to the beaker, and the stopwatch is started at the same time. The time required for the sample to completely dissolve in water is recorded.
[0040] The anti-bleeding effect test results are shown in Table 1. The dissolution time results are shown in Table 2.
[0041] Table 1
[0042] Table 2
[0043] From the above results, it can be seen that compared with other examples and comparative examples, the anti-bleeding effect of example 1 is better, the dissolution time is shorter, and the comprehensive performance is better.
[0044] Compared with example 1, the dissolution time of the first encapsulating film of example 2 and example 3 is longer, so the release speed of the cationic anti-bleeding agent is slower, and thus the anti-bleeding effect is poorer during the washing process.
[0045] Compared with example 1, the difference between example 4 and example 5 is that the compounding ratio of the cationic anti-bleeding agent is different. From the anti-bleeding detection results, it can be seen that the anti-bleeding effects of example 4 and example 5 are both decreased, which indicates that when the mass ratio of cationic guar gum and cationic polyacrylamide is 1:3, the effect is the best.
[0046] Compared with example 1, the difference between example 6 and example 1 is that the dissolution time of the first encapsulating film is shorter. From the anti-bleeding detection results, the anti-bleeding effect is decreased, which may be due to the shorter dissolution time, which causes the anti-bleeding component to be released in advance, thereby partially invalidating the anti-bleeding component.
[0047] Example 7 and Example 8 are different from Example 1 in that the cationic anti- color bleeding agent is different, and both Example 7 and Example 8 only use one kind of cationic anti-color bleeding agent, and the anti-color bleeding effect is not as good as Example 1. It is illustrated that the use of two kinds of cationic anti-color bleeding agents for compounding can achieve better anti-color bleeding effect.
[0048] Comparative Example 1 is different from Example 1 in that the first encapsulation film has a shorter dissolution time, and the anti-color bleeding effect is obviously decreased from the results. The reason is that faster dissolution will cause the anti-color bleeding component to be released too fast, combined with the anionic detergent, and thus the anti-color bleeding effect is affected.
[0049] Comparative Example 2 is different from Example 1 in that the first encapsulation film has a longer dissolution time, and the anti-color bleeding effect is obviously decreased from the results. The reason is that the fragrance-keeping bead has a too long dissolution time, and the anti-color bleeding agent is released too slowly, and at this time part of the dye has been combined to the accompanying cloth.
[0050] It can be understood that for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and inventive concepts of the present application, and all these changes or replacements shall belong to the protection scope of the claims appended to the present application.
Claims
1. A fragrance-retaining bead that prevents color bleeding, characterized in that, The device includes a first sealing film and a second sealing film arranged sequentially from the outside to the inside; the second sealing film encapsulates a fragrance microcapsule; a cationic anti-color-crossing agent is disposed between the first and second sealing films; the raw materials for preparing the first and second sealing films are water-soluble materials; the core material of the fragrance microcapsule includes a fragrance and anionic surfactant; the cationic anti-color-crossing agent includes at least one of cationic guar gum and cationic polyacrylamide; the dissolution time of the first sealing film in water is 2 to 4 minutes; the dissolution time of the second sealing film in water is 1 to 1.5 minutes.
2. The anti-color bleeding and fragrance-retaining beads according to claim 1, characterized in that, The cationic anti-color bleeding agent comprises cationic guar gum and cationic polyacrylamide in a mass ratio of 1:(1-5).
3. The anti-color bleeding and fragrance-retaining beads according to claim 1, characterized in that, The wall material of the flavor microcapsules includes melamine resin and plant protein.
4. The anti-color bleeding and fragrance-retaining beads according to claim 3, characterized in that, The plant protein includes at least one of soy protein and pea protein.
5. The anti-color bleeding and fragrance-retaining beads according to claim 1, characterized in that, The water-soluble material is selected from PVA or polyethylene oxide.
6. The anti-color bleeding and fragrance-retaining beads according to claim 1, characterized in that, In the flavor microcapsules, the mass ratio of melamine resin to plant protein is 1:(3-7).
7. The anti-color bleeding and fragrance-retaining beads according to claim 1, characterized in that, In the flavor microcapsules, the mass ratio of flavor to anionic surfactant is 1:(2-3).
8. A method for preparing anti-color bleeding and fragrance-retaining beads, used to prepare the anti-color bleeding and fragrance-retaining beads as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. Pack the flavor microcapsules with a second sealing film to obtain intermediate material; S2. Mix the intermediate material and the cationic anti-color-crossing agent, then use the first sealing film to package the intermediate material and the cationic anti-color-crossing agent, stir evenly, and obtain the anti-color-crossing fragrance beads.
9. The method for preparing anti-color bleeding and fragrance-retaining beads according to claim 8, characterized in that, The preparation method of the flavor microcapsules includes the following steps: adding melamine resin, plant protein, flavor and anionic surfactant to water, stirring and mixing at high speed at 50°C, and drying to obtain flavor microcapsules.