Essence microcapsule with deodorizing effect as well as preparation method and application thereof
By applying fragrance essential oils and deodorizing factor microcapsules to textiles, the problems of short-lasting deodorizing effects and chemical odors in existing deodorizing products are solved, achieving long-lasting deodorizing and fragrance effects.
Patent Information
- Application Number
- CN202511243620.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-01-16
AI Technical Summary
Existing deodorizing products have a short duration of effect, unpleasant chemical smells, and cannot effectively reduce the social embarrassment of body odor.
Using fragrance essential oils and deodorizing agents, the ingredients are adsorbed by inorganic porous adsorption materials and then coated with polymer materials to form microcapsules. These are then applied to the finishing of textiles to extend the deodorizing and fragrance retention time.
By controlling the timing and manner of microcapsule rupture, fragrance oils are gradually released, prolonging the scent's duration, removing odors, and providing a pleasant aromatic experience.
Smart Images
Figure CN121343671A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of microcapsule preparation, and particularly relates to a fragrance microcapsule with deodorization efficacy, and a preparation method and application thereof. BACKGROUND
[0002] With the improvement of people's requirements for the quality of life, the pursuit of odor is also getting higher and higher. For the growing population and some special population, the human metabolism slows down, and the skin's antioxidant capacity decreases, leading to the oxidation of omega-7 unsaturated fatty acid secreted by the skin to produce 2-nonenal. This substance has a special odor similar to greasy and grassy odor, which is the main source of body odor. The main source of body odor is the decomposition of sweat secreted by human apocrine glands (apocrine sweat glands) by bacteria on the surface of the skin to produce odor. Apocrine glands are mainly distributed in the armpits, perineum, areola and other parts, and the sweat secreted by the apocrine glands contains organic substances such as proteins, lipids and fatty acids (different from the water and electrolytes secreted by ordinary sweat glands). The sweat secreted by the apocrine glands itself has no odor, but the bacteria (such as staphylococcus and corynebacterium) on the surface of the skin in the armpit can decompose the organic matter in the sweat to produce unsaturated fatty acids (such as 3-methyl-2-hexenoic acid), which emits a pungent odor, and the decomposition products may also contain sulfur compounds or ammonia compounds, which aggravate the odor. In addition, high temperature and high humidity environment accelerates skin metabolism and microbial reproduction; bad living habits such as not washing hair often and using oil-based hair products will aggravate the odor; some chronic diseases such as diabetes, kidney disease and oral diseases will affect body odor: for example, diabetic patients produce ketone bodies during metabolism, which smells like rotten apples; kidney disease patients accumulate metabolic products in the body, which may emit a smell similar to salted fish.
[0003] At present, most of the products for people with body odor are sprays, washing and care products, which have a short maintenance time and cannot play an effective role in social time, and most of the products are fragrance covering products, which may produce more odor after mixing with the body odor, and some deodorizing products have a certain chemical odor due to the addition of ingredients, which is difficult to accept.
[0004] Therefore, it is of great significance to develop a fragrance microcapsule with deodorization efficacy for textile finishing to prolong the deodorization and fragrance retention time, reduce the social embarrassment and distress of people with abnormal body odor, and improve the environment of public places where people gather. SUMMARY
[0005] The present application provides a fragrance microcapsule with deodorization efficacy, and a preparation method and application thereof, which adopts fragrance essential oil and deodorization efficacy factor, adsorbs the inorganic porous adsorbent material, and forms a fragrance microcapsule by wrapping the outer layer with a high molecular material, and applies the fragrance microcapsule to textile finishing to prolong the deodorization and fragrance retention time.
[0006] To solve the above technical problems, the first aspect of the present application provides a preparation method of fragrance microcapsules with odor removal effect, comprising the following steps:
[0007] S1, mixing fragrance essential oil, odor removal factor, inorganic porous adsorbent, and then adding isocyanate to form an oil phase solution;
[0008] S2, mixing emulsifier solution and suspension stabilizer to form an aqueous phase solution;
[0009] S3, adding the oil phase solution to the aqueous phase solution, stirring uniformly, and then emulsifying by a homogenizer to form an emulsion system;
[0010] S4, mixing the emulsion system with a crosslinking agent and a catalyst to form the fragrance microcapsules with odor removal effect.
[0011] The present application adopts a specific packaging technology to lock the fragrance essential oil and odor removal factor inside the capsule: first, the inorganic porous adsorbent adsorbs the fragrance essential oil and odor removal factor, and then the outer layer is wrapped with a high molecular material to form a microcapsule outer wall. The formula and process can be adjusted according to the different properties of the core material (such as water-based, oil-based), so that the wall material molecules (hydrophobic, oleophobic) are uniformly arranged, connected head to tail, and the core material molecules are wrapped therein, delaying the volatilization of the core material molecules, protecting the activity of the core material molecules, controlling the release speed of the fragrance by controlling the breaking time and mode of the wall material, making the fragrance gradually spread through fabric friction, prolonging the fragrance retention time, and allowing abnormal odor people to maintain a good odor state in daily life.
[0012] Further, the raw material components of the fragrance microcapsules with odor removal effect include, by mass fraction: 5-25 parts of fragrance essential oil, 1-5 parts of odor removal factor, 0.5-2 parts of inorganic porous adsorbent, 4-10 parts of isocyanate, 15-35 parts of emulsifier solution, 0.5-2g of suspension stabilizer, 0.5-2 parts of crosslinking agent, and 0.2-0.8 parts of catalyst.
[0013] Further, in S1, the odor removal factor includes persimmon extract, tea polyphenol, and tourmaline in a mass ratio of 1:(0.2-1):(0.2-1).
[0014] The inorganic porous adsorbent is porous silica with a pore size of 400-500 nm.
[0015] Tourmaline has a unique crystal structure, can release negative ions, and the negative ions can combine with positive ions in the air, so that the odor molecules in the air are charged, and the charged odor molecules are more easily adsorbed and gathered to form larger particles, thereby settling to the ground, achieving the effect of removing odor. The tannin (tannic acid) in persimmon extract can combine with 2-nonenal (odor source), decompose and neutralize the odor, achieving instant deodorization. The phenolic hydroxyl group in tea polyphenol has high reactivity and can chemically combine with odor molecules (such as mercaptans, amines, etc.), eliminating odor.
[0016] Further, in S2, the mass concentration of the emulsifier solution is 4%-8%;
[0017] The emulsifier is selected from one or more of emulsifier OP-10, emulsifier EMT-10, and polyvinyl alcohol.
[0018] The suspension stabilizer is selected from hydroxypropyl methyl cellulose and / or suspension stabilizer DX-SF-1.
[0019] Further, in S3, the rotation speed of the homogenizer is 4000-10000 rpm, and the emulsification time is 3-5 min.
[0020] Further, in S4, the reaction conditions are: temperature 60-80℃, rotation speed 250-400 rpm.
[0021] Further, in S4, the crosslinking agent is selected from acrylic acid and / or crosslinking agent AF6100.
[0022] The catalyst is tetramethyl ethylenediamine.
[0023] The second aspect of the present application provides a fragrance microcapsule prepared by the preparation method of the first aspect.
[0024] The third aspect of the present application provides a textile finishing method, which uses a finishing liquid to soak the textile, and then pre-dries and bakes the textile; the finishing liquid comprises the fragrance microcapsule of the second aspect.
[0025] Further, the pre-drying temperature is 90±5℃, and the baking temperature is 130±5℃.
[0026] The present application has the following advantages:
[0027] The application adopts specific packaging technology to lock the fragrance essential oil and odor removal factor inside the capsule: first, the inorganic porous adsorption material adsorbs the fragrance essential oil and odor removal factor, and then the outer layer is wrapped with a high polymer material to form a microcapsule outer wall. The formula and process can be adjusted according to the different properties of the core material (such as water-based and oil-based), so that the wall material molecules (hydrophobic and oleophobic) are uniformly arranged, connected head to tail, and wrapped around the core material molecules, delaying the volatilization of the core material molecules and protecting the activity of the core material molecules. Through the microcapsule technology, the fragrance essential oil and odor removal factor can achieve slow controlled release and persistent deodorization.
[0028] The application applies the fragrance microcapsule to textile finishing, and the fragrance microcapsule with deodorization effect is attached to the clothing fabric. During wearing, the fragrance essential oil and odor removal factor in the microcapsule are released through the friction between the human body and the clothing, so that the odor is removed and the person has a pleasant experience. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0030] Figure 1 is the SEM diagram of the fragrance microcapsule obtained in Example 1 of the present application;
[0031] Figure 2 is the SEM diagram of the fragrance microcapsule obtained in Example 2 of the present application;
[0032] Figure 3 is the SEM diagram of the fragrance microcapsule obtained in Example 3 of the present application;
[0033] Figure 4 is the SEM diagram of the fragrance microcapsule obtained in Example 4 of the present application. DETAILED DESCRIPTION
[0034] The technical solutions of the present application will be described in detail below with reference to specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0035] The present embodiment provides a preparation method of a fragrance microcapsule with deodorization effect, comprising the following steps:
[0036] S1, mix the fragrance essential oil, odor-removing efficacy factor and inorganic porous adsorbent, then add isocyanate to form an oil phase solution;
[0037] The odor-removing efficacy factor comprises persimmon extract, tea polyphenol and tourmaline in a mass ratio of 1:(0.2-1):(0.2-1); and the inorganic porous adsorbent is porous silicon dioxide with a pore size of 400-500 nm.
[0038] S2, mix the emulsifier solution and suspension stabilizer to form an aqueous phase solution.
[0039] S3, add the oil phase solution to the aqueous phase solution, stir uniformly, then pass through a homogenizer to emulsify to form an emulsion system.
[0040] S4, mix the emulsion system with a crosslinking agent and a catalyst, and react to form the fragrance microcapsule with odor-removing efficacy.
[0041] The embodiment adopts a specific packaging technology to lock the fragrance essential oil and odor-removing efficacy factor in the capsule. First, the inorganic porous adsorbent is used to adsorb the fragrance essential oil and odor-removing efficacy factor, and then a high polymer material is used to form the outer wall of the microcapsule. The formula and process can be adjusted according to the different properties (such as water-based and oil-based) of the core material, so that the wall material molecules (hydrophobic and oleophobic) are uniformly arranged and connected end to end to wrap the core material molecules, thereby delaying the volatilization of the core material molecules and protecting the activity of the core material molecules. By controlling the breaking time and mode of the wall material, the release speed of the fragrance can be controlled, the fragrance is gradually released through the friction of the fabric, the fragrance retention time is prolonged, and the abnormal odor population can maintain a good odor state in daily life. Tourmaline has a unique crystal structure and can release negative ions. The negative ions can combine with positive ions in the air, so that the odor molecules in the air carry charges. The charged odor molecules are more easily adsorbed and aggregated, forming larger particles, which can then settle to the ground, thereby achieving the effect of removing odor. The tannin (tannic acid) in persimmon extract can combine with 2-nonenal (odor source), decompose and neutralize the odor, thereby achieving instant deodorization. The phenolic hydroxyl group in tea polyphenol has high reactivity and can chemically combine with odor molecules (such as mercaptans and amines), thereby eliminating odor.
[0042] As a preferred embodiment, the raw material components of the fragrance microcapsule with odor-removing efficacy include, by mass fraction, 5-25 parts of fragrance essential oil, 1-5 parts of odor-removing efficacy factor, 0.5-2 parts of inorganic porous adsorbent, 4-10 parts of isocyanate, 15-35 parts of emulsifier solution, 0.5-2 g of suspension stabilizer, 0.5-2 parts of crosslinking agent, and 0.2-0.8 parts of catalyst.
[0043] As a preferred embodiment, in S2, the mass concentration of the emulsifier solution is 4%-8%.
[0044] The emulsifier is selected from one or more of emulsifier OP-10, emulsifier EMT-10, and polyvinyl alcohol;
[0045] The suspension stabilizer is selected from hydroxypropyl methyl cellulose and / or suspension stabilizer DX-SF-1.
[0046] As a preferred embodiment, in S3, the rotation speed of the homogenizer is 4000-10000 rpm, and the emulsification time is 3-5 min.
[0047] As a preferred embodiment, in S4, the reaction conditions are: temperature 60-80℃, rotation speed 250-400 rpm; in S4, the crosslinking agent is selected from acrylic acid and / or crosslinking agent AF6100; and the catalyst is tetramethyl ethylenediamine.
[0048] Another embodiment provides a fragrance microcapsule prepared by the preparation method described in the above embodiments.
[0049] Another embodiment provides a textile finishing method, which uses a finishing liquid to soak the textile, and then performs pre-drying and baking treatment; the finishing liquid comprises the fragrance microcapsule prepared by the preparation method described in the above embodiments.
[0050] As a preferred embodiment, the pre-drying temperature is 90±5℃, and the baking temperature is 130±5℃.
[0051] The following are specific examples and comparative examples.
[0052] Example 1
[0053] This example relates to a preparation method of a fragrance microcapsule, which comprises:
[0054] 8g of rose fragrance essential oil is stirred with 2g of inorganic porous silica (pore size 400-500nm) to a clear state, 1g of tourmaline negative ion powder, 1.5g of persimmon extract, and 0.5g of tea polyphenol are added and uniformly mixed, and then 6g of toluene diisocyanate is added and uniformly stirred to form an oil phase solution.
[0055] A 5% emulsifier OP-10 solution of 28.3g is prepared, 1.5g of suspension stabilizer DX-SF-1 is added and stirred to dissolve uniformly to form an aqueous phase solution.
[0056] The oil phase solution is added to the aqueous phase solution and manually stirred until there is no obvious layering of water and oil, and the oil droplets are uniformly distributed, then a homogenizer is used to emulsify at a rotation speed of 4000 rpm for 3 min to form a stable emulsion system.
[0057] The stable emulsion system was placed in an 80°C water bath, and 0.8g of crosslinking agent AF6100 and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was allowed to proceed for 4 hours to form flavor microcapsules with deodorizing properties. The SEM image is shown below. Figure 1 As shown.
[0058] Example 2
[0059] This embodiment relates to a method for preparing flavor microcapsules, including:
[0060] Mix 12.5g of rose essential oil with 1g of persimmon extract and 0.5g of tea polyphenols evenly, add 0.5g of tourmaline negative ion powder and 1g of inorganic porous silica (pore size 400-500nm), stir until clear, then add 6g of isophorone diisocyanate and stir evenly to form an oil phase solution.
[0061] Prepare 25.8g of a 5% emulsifier OP-10 solution, add 1.5g of suspension stabilizer DX-SF-1 to it, stir and dissolve evenly to form an aqueous solution.
[0062] Add the oil phase solution to the aqueous phase solution and stir manually until there is no obvious separation of water and oil and the oil droplets are evenly distributed. Then, emulsify the mixture for 3 minutes using a homogenizer at 4500 rpm to form a stable emulsion system.
[0063] The stable emulsion system was placed in an 80°C water bath, and 0.8g of crosslinking agent AF6100 and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was allowed to proceed for 4 hours to form flavor microcapsules with deodorizing properties. The SEM image is shown below. Figure 2 As shown.
[0064] Example 3
[0065] This embodiment relates to a method for preparing flavor microcapsules, including:
[0066] Mix 18.5g of rose essential oil with 1g of persimmon extract and 1g of tea polyphenols until homogeneous. Add 0.5g of tourmaline negative ion powder and 1g of inorganic porous silica (pore size 400-500nm) and stir until clear. Then add 8g of isophorone diisocyanate and stir until homogeneous to form an oil phase solution.
[0067] Prepare 17.3g of 8% polyvinyl alcohol solution, add 1.5g of suspension stabilizer DX-SF-1 to it, stir and dissolve evenly to form an aqueous solution.
[0068] Add the oil phase solution to the aqueous phase solution and stir manually until there is no obvious separation of water and oil and the oil droplets are evenly distributed. Then, emulsify the mixture for 3 minutes using a homogenizer at 4500 rpm to form a stable emulsion system.
[0069] A stable emulsion system was placed in an 80°C water bath, and 0.8g of acrylic emulsion and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was allowed to proceed for 4 hours to form fragrance microcapsules with deodorizing properties. The SEM image is shown below. Figure 3 As shown.
[0070] Example 4
[0071] This embodiment relates to a method for preparing flavor microcapsules, including:
[0072] Mix 15g of rose essential oil with 1.5g of persimmon extract and 1g of tea polyphenols until homogeneous. Add 1g of tourmaline negative ion powder and 1.5g of inorganic porous silica (pore size 400-500nm) and stir until clear. Then add 6g of isophorone diisocyanate and stir until homogeneous to form an oil phase solution.
[0073] Prepare 20.8g of a 1% EMT-10 emulsifier solution, add 2g of HPMC (hydroxypropyl methylcellulose) suspension stabilizer to it, stir and dissolve evenly to form an aqueous phase solution.
[0074] Add the oil phase solution to the aqueous phase solution and stir manually until there is no obvious separation of water and oil and the oil droplets are evenly distributed. Then, emulsify the mixture for 3 minutes using a homogenizer at 4500 rpm to form a stable emulsion system.
[0075] A stable emulsion system was placed in an 80°C water bath, and 0.8g of acrylic emulsion and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was allowed to proceed for 4 hours to form fragrance microcapsules with deodorizing properties. The SEM image is shown below. Figure 4 As shown.
[0076] Comparative Example 1
[0077] The difference between this comparative example and Example 1 is that no deodorizing agent is added, specifically:
[0078] Stir 11g of rose essential oil and 2g of inorganic porous silica (pore size 400-500nm) until clear, then add 6g of toluene diisocyanate and stir until homogeneous to form an oil phase solution.
[0079] Prepare 28.3g of 5% OP-10 solution, add 1.5g of suspension stabilizer DX-SF-1 to it, stir and dissolve evenly to form an aqueous solution.
[0080] Add the oil phase solution to the aqueous phase solution and stir manually until there is no obvious separation of water and oil and the oil droplets are evenly distributed. Then, emulsify the mixture for 3 minutes at 4000 rpm using a homogenizer to form a stable emulsion system.
[0081] The stable emulsion system was placed in an 80°C water bath, and 0.8g of crosslinking agent AF6100 and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was carried out for 4 hours to form flavor microcapsules with deodorizing effect.
[0082] Comparative Example 2
[0083] The difference between this comparative example and Example 2 is that tourmaline negative ion powder is not added. Specifically:
[0084] Mix 13g of rose essential oil with 1g of persimmon extract and 0.5g of tea polyphenols until homogeneous. Add 1g of inorganic porous silica (pore size 400-500nm) and stir until clear. Then add 6g of isophorone diisocyanate and stir until homogeneous to form an oil phase solution.
[0085] Prepare 25.8g of 5% OP-10 solution, add 1.5g of suspension stabilizer DX-SF-1 to it, stir and dissolve evenly to form an aqueous solution.
[0086] Add the oil phase solution to the aqueous phase solution and stir manually until there is no obvious separation of water and oil and the oil droplets are evenly distributed. Then, emulsify the mixture for 3 minutes using a homogenizer at 4500 rpm to form a stable emulsion system.
[0087] The stable emulsion system was placed in an 80°C water bath, and 0.8g of crosslinking agent AF6100 and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was carried out for 4 hours to form flavor microcapsules with deodorizing effect.
[0088] Comparative Example 3
[0089] The difference between this comparative example and Example 3 is that no tea polyphenols are added, specifically:
[0090] Mix 19.5g of rose essential oil with 1g of persimmon extract until homogeneous. Add 0.5g of tourmaline negative ion powder and 1g of inorganic porous silica (pore size 400-500nm). Stir until clear, then add 8g of isophorone diisocyanate and stir until homogeneous to form an oil phase solution.
[0091] Prepare 17.3g of 8% polyvinyl alcohol solution, add 1.5g of suspension stabilizer DX-SF-1 to it, stir and dissolve evenly to form an aqueous solution.
[0092] Add the oil phase solution to the aqueous phase solution and stir manually until there is no obvious separation of water and oil and the oil droplets are evenly distributed. Then, emulsify the mixture for 3 minutes using a homogenizer at 4500 rpm to form a stable emulsion system.
[0093] The stable emulsion system was placed in an 80°C water bath, and 0.8g of acrylic emulsion and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was carried out for 4 hours to form flavor microcapsules with deodorizing effects.
[0094] Comparative Example 4
[0095] The difference between this comparative example and Example 4 is that persimmon extract is not added; specifically:
[0096] Mix 16.5g of rose essential oil with 1g of tea polyphenols evenly, add 1g of tourmaline negative ion powder and 1.5g of inorganic porous silica (pore size 400-500nm), stir until clear, then add 6g of isophorone diisocyanate and stir evenly to form an oil phase solution.
[0097] Prepare 20.8g of a 1% EMT-10 emulsifier solution, add 2g of HPMC (hydroxypropyl methylcellulose) suspension stabilizer to it, stir and dissolve evenly to form an aqueous phase solution.
[0098] Add the oil phase solution to the aqueous phase solution and stir manually until there is no obvious separation of water and oil and the oil droplets are evenly distributed. Then, emulsify the mixture for 3 minutes using a homogenizer at 4500 rpm to form a stable emulsion system.
[0099] The stable emulsion system was placed in an 80°C water bath, and 0.8g of acrylic emulsion and 0.4g of tetramethylethylenediamine were added dropwise while stirring at 400rpm. The reaction was carried out for 4 hours to form flavor microcapsules with deodorizing effects.
[0100] The finishing agent containing the fragrance microcapsules obtained in the examples and comparative examples was added to water at a concentration of 40 g / L and stirred evenly to form a finishing solution. Cotton fabric was processed according to the following steps: padding → pre-drying (90℃, 2 min) → baking (130℃, 1 min) → finished product. Then, an odor removal test was conducted: an open container containing 2 g of 2-nonenal was placed in a sealed chamber. The finished fabric was rubbed for 10 seconds and placed in the sealed chamber, left to stand for 1 hour, and a group of 10 testers were selected to conduct an odor test. In Examples 1-4, there was no odor and a noticeable fragrance; however, in Comparative Example 1, due to the lack of odor-removing functional factors, there was a noticeable odor and no fragrance; in Comparative Examples 2-4, the lack of tourmaline, tea polyphenols, or persimmon extract reduced the odor-removing effect, and compared to the corresponding examples, an odor was present, with both odor and fragrance present.
[0101] This invention employs a specific encapsulation technology to securely lock fragrance essential oils and deodorizing agents within capsules: First, the fragrance essential oils and deodorizing agents are adsorbed using an inorganic porous adsorbent material. Then, a polymer material is wrapped around the outer layer to form the microcapsule wall. The formula and process can be adjusted according to the different properties of the core material (e.g., water-based or oil-based) to ensure that the wall material molecules (hydrophobic or oleophobic) are evenly arranged and connected end-to-end, encapsulating the core material molecules, delaying their volatilization, and protecting their activity. Through microcapsule encapsulation, the fragrance essential oils and deodorizing agents can achieve slow-release control, resulting in long-lasting deodorization and fragrance retention. This invention applies fragrance microcapsules to textile finishing, attaching deodorizing microcapsules to clothing fabrics. During wear, the friction between the body and the clothing releases the fragrance essential oils and deodorizing agents from the microcapsules, providing a pleasant and aromatic experience while eliminating odors.
[0102] The present invention has been described in detail above with reference to specific embodiments and exemplary examples; however, these descriptions should not be construed as limiting the present invention. Those skilled in the art will understand that various equivalent substitutions, modifications, or improvements can be made to the technical solutions and embodiments of the present invention without departing from the spirit and scope of the invention, and all such modifications and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims.
Claims
1. A method for preparing a flavor microcapsule having a deodorizing effect, characterized by, The method comprises the following steps: S1, mixing fragrance essential oil, odor removal factor, inorganic porous adsorbent, and then adding isocyanate to form an oil phase solution; S2, mixing emulsifier solution and suspension stabilizer to form an aqueous phase solution; S3, adding the oil phase solution to the aqueous phase solution, stirring uniformly, and then emulsifying by a homogenizer to form an emulsion system; S4, mixing the emulsion system with a crosslinking agent and a catalyst to form the fragrance microcapsule with odor removal effect.
2. The method of claim 1, wherein the flavor microcapsule having a deodorizing effect is prepared by adding a deodorizing agent to the flavor microcapsule. The raw material components of the fragrance microcapsule with odor removal effect include, by mass fraction, 5-25 parts of fragrance essential oil, 1-5 parts of odor removal factor, 0.5-2 parts of inorganic porous adsorbent, 4-10 parts of isocyanate, 15-35 parts of emulsifier solution, 0.5-2 g of suspension stabilizer, 0.5-2 parts of crosslinking agent, and 0.2-0.8 parts of catalyst.
3. The method of claim 1, wherein the flavor microcapsule having a deodorizing effect is prepared by adding a deodorizing agent to the flavor microcapsule. In S1, the odor removal factor includes persimmon extract, tea polyphenol, and tourmaline in a mass ratio of 1:(0.2-1):(0.2-1); The inorganic porous adsorbent is porous silica with a pore size of 400-500 nm.
4. The method of claim 1, wherein the flavor microcapsule having a deodorizing effect is prepared by adding a deodorizing agent to the flavor microcapsule. In S2, the mass concentration of the emulsifier solution is 4%-8%; The emulsifier is selected from one or more of emulsifier OP-10, emulsifier EMT-10, and polyvinyl alcohol; The suspension stabilizer is selected from hydroxypropyl methylcellulose and / or suspension stabilizer DX-SF-1.
5. The method of claim 1, wherein the flavor microcapsule having a deodorizing effect is prepared by adding a deodorizing agent to the flavor microcapsule. In S3, the rotation speed of the homogenizer is 4000-10000 rpm, and the emulsification time is 3-5 min.
6. The method of claim 1, wherein the flavor microcapsule having a deodorizing effect is prepared by adding a deodorizing agent to the flavor microcapsule. In S4, the reaction conditions are a temperature of 60-80℃ and a rotation speed of 250-400 rpm.
7. The method of claim 1, wherein the flavor microcapsule having a deodorizing effect is prepared by adding a deodorizing agent to the flavor microcapsule. In S4, the crosslinking agent is selected from acrylic acid and / or crosslinking agent AF6100; The catalyst is tetramethylethylenediamine.
8. A fragrance microcapsule prepared by the preparation method of any one of claims 1-7.
9. A method of finishing a textile fabric, characterised in that, The textile fabric is immersed in a finishing liquid, pre-dried, and baked; the finishing liquid comprises the fragrance microcapsule of claim 8.
10. The method of finishing a textile according to claim 9, wherein, The pre-drying temperature is 90±5℃, and the baking temperature is 130±5℃.