Air freshening device with fragrance and formaldehyde removal functions

Abstract

The invention discloses an air freshening device with fragrance and formaldehyde removal functions, which comprises a box body, a first accommodating cavity and a second accommodating cavity are arranged in the box body, balm and an independently packaged activating agent are arranged in the first accommodating cavity, and a plurality of formaldehyde removal beads are arranged in the second accommodating cavity; the weight ratio of the balm to the activating agent is 99: 1; the balsam is prepared from the following raw material components in parts by weight: 0.7-1.5 parts of microbial gum, 3-6 parts of a solubilizer, 2-5 parts of perfume, 2-6 parts of a dispersing agent, 0.5-1.2 parts of a chlorine dioxide precursor, 0.1-0.2 part of a bridging agent, 0.2-1 part of an alkaline adjusting substance, 0.1-0.3 part of a color indicator and 80-90 parts of deionized water, the formaldehyde removal beads are prepared from the following raw material components in parts by weight: 60-75 parts of activated aluminum oxide powder, 25-35 parts of an active manganese component, 1-2 parts of a filling agent, 0.5-1 part of a slow release agent and 0.5-0.8 part of an adhesive. The air freshening device provided by the invention not only can remove aldehyde for a long time, but also can give fragrance, and is fragrant and odorless.

Description

Technical Field

[0001] The invention relates to the technical field of air freshening and purification, and in particular to an air freshening device with fragrance and formaldehyde removal functions. Background Art

[0002] In modern society, with the vigorous development of the building decoration industry, the beauty and comfort of people's living environment have been significantly improved. However, behind this lies a health hazard that cannot be ignored - formaldehyde pollution. Formaldehyde, a colorless gas with a pungent odor, is widely present in various decoration materials, furniture, flooring, paint, glue, etc. Its harmfulness cannot be ignored and has become an "invisible killer" that affects human health. The presence of low concentrations of formaldehyde can cause irritation in the eyes, nose, throat and other parts. High concentrations of formaldehyde can irritate the respiratory mucosa and cause bronchial asthma, allergic dermatitis, etc. Therefore, the World Health Organization (WHO) has listed formaldehyde as one of the carcinogens. Long-term exposure to formaldehyde can increase the risk of malignant tumors such as nasopharyngeal carcinoma and leukemia.

[0003] Due to the harmfulness of formaldehyde to the human body, and the fact that formaldehyde accompanies newly renovated houses and new car leather, many formaldehyde removal products have emerged on the market, such as the common activated carbon physical adsorption, photocatalyst removal, plant extract treatment, etc., but activated carbon adsorption is easy to desorb and cannot be fundamentally removed; photocatalyst preparations require light to better excite free radicals, and the effect is poor indoors or in cars; although some plants such as ivy show high formaldehyde purification efficiency under laboratory conditions, in actual home environments, the purification ability of plants is relatively limited.

[0004] Chlorine dioxide has high efficiency and broad-spectrum bactericidal ability, inhibits the activity of intracellular enzymes, quickly inhibits protein synthesis, and has a good antibacterial and bactericidal effect. Its safety is also classified as AI level by the World Health Organization. Relevant research reports began to appear in my country in 2006, and it has been used in the fields of disinfection and preservation of fruits, vegetables and other foods, as well as disinfection and removal of formaldehyde pollution. For example, the prior patent CN101810874B proposed a slow-release chlorine dioxide gel, which has a simple preparation method and stable release for 3-6 months, but the performance deviation in the middle and later periods; CN111701439A discloses a formaldehyde removal color-changing gel with visual senses, which reacts with alkaline alcohol amine compounds with formaldehyde, and the pH of the gel system changes so that the acid-base indicator changes color, achieving the purpose of removing formaldehyde color. This method has the introduction of odor substances and affects the experience; CN115608129A also proposed a purple cabbage extract gel composition with formaldehyde color-changing performance, which improves the indication sensitivity of formaldehyde purification gel and does not have odor.

[0005] In summary, based on the current technical characteristics of the product, chlorine dioxide gel products still have shortcomings such as poor durability and lack of fragrance, and the sensory experience of the product needs to be further improved. Summary of the invention

[0006] In order to overcome the existing technical defects, the present invention provides an air freshener with fragrance and formaldehyde removal functions. Fragrance ointment and formaldehyde removal beads are arranged in sequence from the inside to the outside of the box body. The two can evaporate and release outward at the same time. The two can synergistically improve the formaldehyde removal effect and can greatly improve the duration of formaldehyde removal. The stable formaldehyde removal can reach more than 3-6 months. At the same time, compatible fragrances are introduced, which can not only remove formaldehyde for a long time, but also add fragrance. It is fragrant and odorless, has strong durability, and the formaldehyde removal color change of the ointment can also be intuitively observed.

[0007] In order to solve the above problems, the present invention proposes the following technical solutions:

[0008] In a first aspect, an air freshener with fragrance and formaldehyde removal functions is provided, comprising a box body, wherein a first cavity and a second cavity separated from each other are sequentially arranged in the box body from the inside to the outside, a perfume cream and an independently packaged activator are arranged in the first cavity, and the activator is dispersed on the surface of the perfume cream when in use, a plurality of formaldehyde removal beads are arranged in the second cavity, and a plurality of flow holes are penetrated at the top of the box body at positions corresponding to the first cavity and the second cavity;

[0009] Wherein, the weight ratio of the balm to the activator is 99:1;

[0010] The ointment is prepared from the following raw material components in parts by weight: 0.7-1.5 parts of microbial gum, 3-6 parts of solubilizer, 2-5 parts of fragrance, 2-6 parts of dispersant, 0.5-1.2 parts of chlorine dioxide precursor, 0.1-0.2 parts of bridging agent, 0.2-1 parts of alkaline regulating substance, 0.1-0.3 parts of color indicator, and 80-90 parts of deionized water;

[0011] The formaldehyde-removing beads are made of the following raw material components in parts by weight: 60-75 parts of activated alumina powder, 25-35 parts of active manganese components, 1-2 parts of fillers, 0.5-1 parts of sustained-release agents, and 0.5-0.8 parts of adhesives.

[0012] Furthermore, the microbial glue is selected from: a purity of 82-100%, a pH value of 5.5-7.5, and a gel strength greater than 800 g / cm 2 Low acyl microbial glue; preferably with a purity of ≥98.5%, a pH value of 6.75-6.9, and a gel strength of greater than 1320g / cm 2 Low acyl microbial gum.

[0013] Furthermore, the microbial gum includes but is not limited to one or more of gellan gum, carrageenan, xanthan gum and konjac gum.

[0014] The spices used in the present invention are hydrophilic spices, preferably spices with DPM solvent and good hydrophilicity, and the spices should contain no or very little aldehyde spices (such as citral, cinnamaldehyde, ethyl vanillin, etc.) and phenolic raw materials that are easy to change color under alkaline conditions (such as eugenol, isoeugenol, cinnamaldehyde, etc.).

[0015] Furthermore, the fragrance is selected from alcohol fragrances or ether fragrances having a vapor pressure of 2 mmHg to 5 mmHg at 25°C; preferably, alcohol fragrances or ether fragrances having a vapor pressure of 3 mmHg to 4.5 mmHg at 25°C.

[0016] Furthermore, alcohol fragrances include, but are not limited to, one or more of phenylethyl alcohol, geraniol, nerol and linalool.

[0017] Furthermore, ether fragrances include, but are not limited to, one or more of rose oxide, nerolidol, linalyl acetate and ambroxan.

[0018] Furthermore, the solubilizing agent is selected from surfactants with an HLB value of 12 to 18, preferably surfactants with an HLB value of 14 to 18, and is used to solubilize the fragrance oily substance into the aqueous paste system.

[0019] Furthermore, the solubilizer includes, but is not limited to, one or more of polyoxyethylene ether series, hydrogenated castor oil, and Tween.

[0020] Furthermore, the chlorine dioxide precursor is selected from one or more of sodium chlorite, potassium chlorite, magnesium chlorite and barium chlorite.

[0021] Furthermore, the bridging agent includes but is not limited to one or more of calcium chloride, magnesium chloride and calcium lactate, and is mainly used to provide ion channels so that the microbial colloid forms a three-dimensional network structure.

[0022] Furthermore, the dispersant includes but is not limited to one or more of dipropylene glycol, 3-methyl-3-methoxy-1-butanol and glycerol, and is mainly used to evenly disperse the microbial gum.

[0023] Furthermore, the alkaline regulating substance is selected from a mixture of sodium carbonate and sodium bicarbonate, a mixture of disodium hydrogen phosphate and sodium dihydrogen phosphate, or a mixture of boric acid and boric acid sand, so that the chlorine dioxide precursor can be stably compatible in the ointment and is not affected by the fragrance raw materials; preferably, a mixture of sodium carbonate and sodium bicarbonate is used, and the weight ratio of sodium carbonate to sodium bicarbonate is 1:1.

[0024] Furthermore, the activator includes but is not limited to one or more of citric acid, malic acid and phosphoric acid, which is dispersed on the surface of the ointment when used to provide acidic conditions and react with the chlorine dioxide precursor in the ointment to make the ointment release chlorine dioxide gas.

[0025] Furthermore, the color indicator may be selected from an acid-base indicator, including but not limited to one or more of phenol red, neutral red and phenolphthalein, wherein phenol red: pH value color change range (6.5-8.5), color change (yellow-red); neutral red: pH value color change range (6.8-8.0), color change (red-yellow-orange); phenolphthalein: pH value color change range (8.2-10), color change (colorless-red).

[0026] Furthermore, the preparation process of the ointment comprises the following steps:

[0027] (1) adding an alkaline regulating substance to 5 parts by weight of deionized water to obtain a pH regulating buffer solution having a pH value of 7.5-8.5; the pH regulating buffer solution is a weakly alkaline buffer solution, and the pH regulating buffer solution prepared enables the chlorine dioxide precursor to be stably compatible with the ointment, is not affected by the fragrance raw materials, and has no taste;

[0028] (2) adding microbial gum and dispersant to the remaining deionized water in sequence, heating to 95 degrees and keeping the temperature for 1 hour to obtain a mixed solution 1;

[0029] (3) After the temperature of the mixed solution 1 is naturally cooled to 70 degrees, a bridging agent, a pH adjustment buffer and a chlorine dioxide precursor are added in sequence and stirred evenly to obtain a mixed solution 2;

[0030] (4) Mix the flavor and the solubilizer evenly and heat to 50 degrees, then add them to the mixed solution 2 of step (2) to obtain a mixed solution 3;

[0031] (5) After the temperature of the mixed solution 3 is naturally cooled to 62 degrees, a color indicator is added, and then the mixed solution is bottled in the first cavity and cooled and solidified into a balm.

[0032] Furthermore, the active manganese component is a mixture of potassium permanganate and potassium manganate. Potassium permanganate is one of the strongest oxidants, has no odor, and is in the form of black-purple crystals. When it encounters organic matter such as formaldehyde, a chemical reaction occurs to release nascent oxygen and manganese dioxide. The nascent oxygen also has bactericidal and deodorizing effects, and its effect and durability are stronger than those of hydrogen peroxide.

[0033] Furthermore, the filler includes but is not limited to one or more of fumed silica, talc and mica powder.

[0034] Furthermore, the sustained-release agent includes, but is not limited to, one or more of diatomaceous earth, sodium ethylcellulose and sodium tripolyphosphate.

[0035] Furthermore, the preparation process of the aldehyde removal beads comprises the following steps:

[0036] (1) Bake the activated alumina powder at 100 degrees for 24 hours;

[0037] (2) first add filler, sustained-release agent and binder to the baked activated alumina powder in sequence, preferably add active manganese component, fully disperse and stir evenly to obtain slurry;

[0038] (3) forming the slurry into spherical particles;

[0039] (4) The spherical particles are sintered at high temperature to achieve the desired alumina structure and crystal morphology, thereby obtaining formaldehyde removal beads.

[0040] Furthermore, the particle size of the formaldehyde-removing beads is ≥4 mm, preferably 6 mm.

[0041] Furthermore, the compressive strength of the formaldehyde-removing beads is ≥85N / bead, preferably ≥120N / bead.

[0042] Furthermore, the water absorption rate of the formaldehyde-removing beads is ≥40%, preferably ≥50%.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. The perfume in the present invention contains spices that can volatilize and release fragrance, so as to achieve the purpose of dispersing fragrance and removing odor. By adding alkaline regulating substances to the perfume components, the alkaline regulating substances can be mixed with water to form a weakly alkaline buffer solution during production, so that the chlorine dioxide precursor can be stably compatible with the perfume, not affected by the fragrance raw materials, and has no taste. When in use, the activator is dispersed on the surface of the perfume to provide acidic conditions. The chlorine dioxide precursor reacts under acidic conditions to release chlorine dioxide gas, so as to achieve the effect of removing formaldehyde.

[0045] 2. The formaldehyde removal beads of the present invention utilize activated alumina as a carrier and introduce active manganese components, presenting beads with both strong adsorption capacity and strong oxidizing properties. They can oxidize and decompose reducing harmful gases in the air, thereby achieving the purpose of purifying the air, and have a high removal rate for harmful gases such as formaldehyde and sulfide.

[0046] 3. The air freshener of the present invention is provided with the above-mentioned ointment and formaldehyde removal beads in the box body at the same time. The two can evaporate and release outward through the circulation holes at the same time. The two can synergistically improve the formaldehyde removal effect and greatly improve the duration of formaldehyde removal. The formaldehyde removal can be stable for more than 3-6 months. At the same time, compatible fragrances are introduced, which can not only remove formaldehyde for a long time, but also add fragrance. It is fragrant and odorless, has strong durability, and the color change of formaldehyde removal of the ointment can also be intuitively observed.

[0047] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a schematic diagram of an air freshener in an embodiment;

[0049] Figure 2 A cross-sectional view of an air freshener in an embodiment

[0050] Figure 3 It is a schematic diagram of the lower box in the embodiment. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0053] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0054] like Figures 1 to 3As shown, an air freshener with fragrance and formaldehyde removal functions provided by an embodiment of the present invention comprises a box body 1, in which a first cavity 10 and a second cavity 11 separated from each other are sequentially arranged from the center to the outside, that is, the second cavity 11 is arranged around the first cavity 10, and a perfume 2 and an activator 3 which is independently packaged in a sealed bag and placed above the perfume are arranged in the first cavity 10. When in use, the sealed bag can be torn open and the activator 3 can be dispersed on the surface of the perfume 2. A plurality of formaldehyde removal beads 4 are arranged in the second cavity 11, and a plurality of flow holes 12 are penetrated on the top of the box body 1 at positions corresponding to the first cavity 10 and the second cavity 11, so that the air inside and outside the box body can circulate through the flow holes 12, thereby allowing the perfume and the formaldehyde removal beads to evaporate and release outward.

[0055] In the above, the specifications of the aldehyde removal beads are as follows:

[0056] Particle size: greater than or equal to 4 mm, preferably 6 mm;

[0057] Compressive strength: greater than or equal to 85N / piece, preferably greater than or equal to 120N / piece;

[0058] Water absorption rate: greater than or equal to 40%, preferably greater than or equal to 50%.

[0059] Optional, such as Figure 2 As shown, the box body 1 includes an upper box 100 and a lower box 101 which are detachably connected up and down, a first cavity 10 and a second cavity 11 are formed between the upper box 100 and the lower box 101, and a plurality of flow holes 12 are penetrated through the upper box 100.

[0060] In one case, the upper box or the lower box is made of transparent material, which makes it easy to observe the color changes of the internal ointment and formaldehyde-removing beads.

[0061] In another case, the entire box is made of transparent material, which makes it easy to observe the color changes of the internal ointment and formaldehyde-removing beads.

[0062] Optionally, the weight ratio between the ointment 2 and the activator 3 is 99:1, that is, the weight of the ointment in the box is 99 times the weight of the activator.

[0063] Specifically, the ointment 2 is made of the following raw material components in parts by weight: 0.7-1.5 parts of microbial gum, 3-6 parts of solubilizer, 2-5 parts of fragrance, 2-6 parts of dispersant, 0.5-1.2 parts of chlorine dioxide precursor, 0.1-0.2 parts of bridging agent, 0.2-1 parts of alkaline regulating substance, 0.1-0.3 parts of color indicator, and 80-90 parts of deionized water;

[0064] Optionally, the microbial glue is selected from: a purity of 82-100%, a pH value of 5.5-7.5, and a gel strength greater than 800 g / cm 2Low acyl microbial glue; preferably with a purity of ≥98.5%, a pH value of 6.75-6.9, and a gel strength of greater than 1320g / cm 2 Low acyl microbial gum.

[0065] Optionally, the microbial gum includes, but is not limited to, one or more of gellan gum, carrageenan, xanthan gum and konjac gum.

[0066] The fragrance selected in this embodiment is a hydrophilic fragrance, preferably a fragrance whose solvent is a DPM version and has good hydrophilicity, and the fragrance should contain no or very little aldehyde fragrances (such as citral, cinnamaldehyde, ethyl vanillin, etc.) and phenolic raw materials that are easy to change color under alkaline conditions (such as eugenol, isoeugenol, cinnamaldehyde, etc.).

[0067] Optionally, the fragrance is selected from alcohol fragrances or ether fragrances having a vapor pressure of 2 mmHg to 5 mmHg at 25°C; preferably, alcohol fragrances or ether fragrances having a vapor pressure of 3 mmHg to 4.5 mmHg at 25°C.

[0068] Optionally, the alcohol fragrance includes, but is not limited to, one or more of phenylethyl alcohol, geraniol, nerol and linalool.

[0069] Optionally, the ether fragrance includes, but is not limited to, one or more of rose oxide, nerolidol, linalyl acetate and ambroxan.

[0070] Optionally, the solubilizer is selected from surfactants with an HLB value of 12 to 18, preferably surfactants with an HLB value of 14 to 18, and is used to solubilize the fragrance oily substance into the aqueous paste system.

[0071] Optionally, the solubilizer includes, but is not limited to, one or more of polyoxyethylene ether series, hydrogenated castor oil, and Tween.

[0072] Optionally, the chlorine dioxide precursor is selected from one or more of sodium chlorite, potassium chlorite, magnesium chlorite and barium chlorite.

[0073] Optionally, the bridging agent includes but is not limited to one or more of calcium chloride, magnesium chloride and calcium lactate, and is mainly used to provide ion channels so that the microbial colloid forms a three-dimensional network structure.

[0074] Optionally, the dispersant includes but is not limited to one or more of dipropylene glycol, 3-methyl-3-methoxy-1-butanol and glycerol, and is mainly used to evenly disperse the microbial gum.

[0075] Optionally, the alkaline regulating substance is selected from a mixture of sodium carbonate and sodium bicarbonate, a mixture of disodium hydrogen phosphate and sodium dihydrogen phosphate, or a mixture of boric acid and boric acid sand, so that the chlorine dioxide precursor can be stably compatible in the ointment and is not affected by the fragrance raw materials; preferably, a mixture of sodium carbonate and sodium bicarbonate is used, and the weight ratio of sodium carbonate to sodium bicarbonate is 1:1; preferably, the weight ratio of disodium hydrogen phosphate and sodium dihydrogen phosphate is 1:1, and the weight ratio of boric acid and boric acid sand is 1:1.

[0076] Optionally, the activator includes but is not limited to one or more of citric acid, malic acid and phosphoric acid, which are dispersed on the surface of the ointment when used to provide acidic conditions. The chlorine dioxide precursor reacts under acidic conditions to release chlorine dioxide gas to achieve the effect of removing formaldehyde; taking sodium chlorite as an example, the ionic formula when it reacts under acidic conditions is as follows: 5NaClO2+4H + =4ClO2↑+5Na + +Cl - +2H2O.

[0077] Optionally, the color indicator can be an acid-base indicator, which changes color after absorbing formaldehyde to achieve an intuitive and visual effect. The color indicator includes but is not limited to one or more of phenol red, neutral red and phenolphthalein, among which phenol red: pH color change range (6.5-8.5), color change (yellow-red); neutral red: pH color change range (6.8-8.0), color change (red-yellow-orange); phenolphthalein: pH color change range (8.2-10), color change (colorless-red).

[0078] The preparation method of the above-mentioned ointment comprises the following steps:

[0079] (1) Divide deionized water into two unequal parts, one of which has 5 parts by weight of deionized water and the other has the remaining deionized water; first add an alkaline adjusting substance to 5 parts by weight of deionized water to obtain a pH adjusting buffer solution with a pH value of 7.5-8.5; the pH adjusting buffer solution is a weakly alkaline buffer solution, and the chlorine dioxide precursor can be stably compatible with the ointment through the prepared pH adjusting buffer solution, is not affected by the fragrance raw materials, and has no taste;

[0080] (2) adding microbial gum and dispersant to the remaining deionized water in sequence, heating to 95 degrees and keeping the temperature for 1 hour to obtain a mixed solution 1;

[0081] (3) After the temperature of the mixed solution 1 is naturally cooled to 70 degrees, a bridging agent, a pH adjustment buffer and a chlorine dioxide precursor are added in sequence and stirred evenly to obtain a mixed solution 2; the pH adjustment buffer is the pH adjustment buffer described in step (1);

[0082] (4) Mix the flavor and the solubilizer evenly and heat to 50 degrees, then add them to the mixed solution 2 of step (2) to obtain a mixed solution 3;

[0083] (5) After the temperature of the mixed solution 3 is naturally cooled to 62 degrees, a color indicator is added and mixed evenly, and then the mixed solution is bottled in the first cavity and cooled and solidified into a balm.

[0084] Specifically, the formaldehyde-removing beads 3 are made of the following raw material components in parts by weight: 60-75 parts of activated alumina powder, 25-35 parts of active manganese components, 1-2 parts of fillers, 0.5-1 parts of sustained-release agents, and 0.5-0.8 parts of adhesives.

[0085] Among the above, activated alumina is a porous, highly dispersed solid material with a large surface area. Its microporous surface has the characteristics required for catalysis, such as adsorption performance, surface activity, excellent thermal stability, etc., so it is widely used as a catalyst and catalyst carrier for chemical reactions. Spherical activated alumina transformer oil adsorbent is a white spherical porous particle. The activated alumina has a uniform particle size, a smooth surface, high mechanical strength, strong hygroscopicity, and does not swell or crack after absorbing water. It remains in its original state and is non-toxic and odorless. Activated alumina is an efficient desiccant for deep drying of trace amounts of water and is suitable for heatless regeneration devices; therefore, by using activated alumina with high adsorption performance as a carrier and introducing active manganese components with strong oxidizing properties, long-lasting formaldehyde removal and deodorization functional beads can be developed.

[0086] Optionally, the active manganese ingredient is a mixture of potassium permanganate and potassium manganate. Potassium permanganate is one of the strongest oxidants, has no odor, and is in the form of black-purple crystals. When it encounters organic matter such as formaldehyde, a chemical reaction occurs to release nascent oxygen and manganese dioxide. The nascent oxygen also has bactericidal and deodorizing effects, and its effect and durability are stronger than hydrogen peroxide.

[0087] Optionally, the filler includes, but is not limited to, one or more of fumed silica, talc and mica powder.

[0088] Optionally, the sustained-release agent includes, but is not limited to, one or more of diatomaceous earth, sodium ethylcellulose and sodium tripolyphosphate.

[0089] Optionally, the binder includes, but is not limited to, one or more of starch, dextrin and polyvinyl alcohol.

[0090] The preparation method of the above-mentioned aldehyde-removing beads comprises the following steps:

[0091] (1) pre-treating the activated alumina powder by baking the activated alumina powder at 100 degrees for 24 hours;

[0092] (2) first add filler, sustained-release agent and binder to the baked activated alumina powder in sequence, preferably add active manganese component, fully disperse and stir evenly to obtain slurry;

[0093] (3) using an integrated molding process to mold the slurry into spherical particles with a particle size of about 6 mm; specifically, the slurry obtained in step (2) can be first filled into a mold, isostatically pressed, and then demolded to obtain spherical particles;

[0094] (4) The spherical particles are sintered at high temperature to achieve the desired alumina structure and crystal morphology, thereby obtaining formaldehyde removal beads.

[0095] The air purifier provided above has passed the formaldehyde removal test of a third party (Feifan Standard Technical Services (Suzhou) Co., Ltd.):

[0096] 1. Test requirements: The volume of the test chamber is 3m 3 , cabin temperature 25-30℃.

[0097] 2. Test method: Tear off the aluminum foil, pour the activator evenly into the ointment and spread it evenly, shake it evenly and let it stand for 60 minutes, then place the air freshener in the test chamber and start the test directly.

[0098] 3. The test results are shown in the following table:

[0099]

[0100] Example 1

[0101] The present embodiment provides an air freshener with fragrance and formaldehyde removal functions, wherein the ointment inside the box body comprises the following raw material components in parts by weight: 1.0 part of gellan gum, 0.3 part of carrageenan, 4 parts of hydrogenated castor oil, 3.5 parts of fragrance, 2.6 parts of glycerin, 0.5 part of sodium chlorite, 0.5 part of potassium chlorite, 0.1 part of sodium carbonate, 0.1 part of sodium bicarbonate, 0.2 part of calcium chloride, 0.2 part of phenol red, and 86 parts of deionized water; and the activator is 1 part of malic acid; the formaldehyde removal beads comprise the following raw material components in parts by weight: 65 parts of activated alumina powder, 24 parts of potassium permanganate, 8 parts of potassium manganate, 1.6 parts of talc, 0.8 part of diatomaceous earth, and 0.6 part of starch.

[0102] Example 2

[0103] The present embodiment provides an air freshener with fragrance and formaldehyde removal functions, wherein the ointment inside the box body comprises the following raw material components in parts by weight: 0.9 parts of gellan gum, 0.3 parts of carrageenan, 5 parts of hydrogenated castor oil, 3 parts of fragrance, 3.5 parts of dipropylene glycol, 1.1 parts of sodium chlorite, 0.1 parts of sodium carbonate, 0.1 parts of sodium bicarbonate, 0.15 parts of calcium chloride, 0.2 parts of neutral red, and 84.65 parts of deionized water; and the activator is 1 part of malic acid; the formaldehyde removal beads comprise the following raw material components in parts by weight: 63 parts of activated alumina powder, 28 parts of potassium permanganate, 6.5 parts of potassium manganate, 1 part of mica powder, 0.5 parts of sodium tripolyphosphate, 0.2 parts of diatomaceous earth, 0.3 parts of starch, and 0.5 parts of polyvinyl alcohol.

[0104] Example 3

[0105] The present embodiment provides an air freshener with fragrance and formaldehyde removal functions, wherein the ointment inside the box body comprises the following raw material components in parts by weight: 0.7 parts of gellan gum, 0.3 parts of carrageenan, 0.2 parts of konjac gum, 6 parts of hydrogenated castor oil, 5 parts of fragrance, 2 parts of glycerin, 0.5 parts of sodium chlorite, 0.5 parts of potassium chlorite, 0.1 parts of sodium carbonate, 0.1 parts of sodium bicarbonate, 0.2 parts of calcium chloride, 0.2 parts of phenolphthalein, and 83.2 parts of deionized water; and the activator is 1 parts by weight of malic acid; the formaldehyde removal beads comprise the following raw material components in parts by weight: 67 parts of activated alumina powder, 25 parts of potassium permanganate, 5 parts of potassium manganate, 0.5 parts of fumed silica, 1.2 parts of mica powder, 0.3 parts of sodium ethyl cellulose, 0.3 parts of sodium tripolyphosphate, and 0.7 parts of dextrin.

[0106] The actual use effects of the air fresheners of the above three embodiments were tested, and the specific test reports are shown in the following table:

[0107]

[0108] As can be seen from the above table, the formaldehyde removal rate of the air freshener provided in the above embodiment is the highest in the first month of initial use, which can reach more than 95%. As the use time increases and the effective ingredients decrease, the formaldehyde removal rate of the device will gradually decrease from the second month, but by the sixth month, the formaldehyde removal rate can still be ensured to reach more than 80%.

[0109] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An air freshener with aroma and formaldehyde removal functions, characterized in that: The box body comprises a first cavity and a second cavity, which are arranged in sequence from the inside to the outside. The first cavity is provided with a perfume and an independently packaged activator, and the activator is dispersed on the surface of the perfume when in use. The second cavity is provided with a plurality of formaldehyde-removing beads. The top of the box body is provided with a plurality of flow holes at positions corresponding to the first cavity and the second cavity. Wherein, the weight ratio of the balm to the activator is 99:1; The ointment is prepared from the following raw material components in parts by weight: 0.7-1.5 parts of microbial gum, 3-6 parts of solubilizer, 2-5 parts of fragrance, 2-6 parts of dispersant, 0.5-1.2 parts of chlorine dioxide precursor, 0.1-0.2 parts of bridging agent, 0.2-1 parts of alkaline regulating substance, 0.1-0.3 parts of color indicator, and 80-90 parts of deionized water; The formaldehyde-removing beads are made of the following raw material components in parts by weight: 60-75 parts of activated alumina powder, 25-35 parts of active manganese components, 1-2 parts of fillers, 0.5-1 parts of sustained-release agents, and 0.5-0.8 parts of adhesives.

2. The air freshener according to claim 1, characterized in that: The microbial glue is selected from: a purity of 82-100%, a pH value of 5.5-7.5, and a gel strength greater than 800 g / cm 2 Low acyl microbial glue; preferably with a purity of ≥98.5%, a pH value of 6.75-6.9, and a gel strength of greater than 1320g / cm 2 Low acyl type microbial gum.

3. The air freshener according to claim 1, characterized in that: The microbial gum is selected from one or more of gellan gum, carrageenan, xanthan gum and konjac gum.

4. The air freshener according to claim 1, characterized in that: The fragrance is selected from alcohol fragrances or ether fragrances having a vapor pressure of 2 mmHg to 5 mmHg at 25°C; preferably, alcohol fragrances or ether fragrances having a vapor pressure of 3 mmHg to 4.5 mmHg at 25°C.

5. The air freshener according to claim 1, characterized in that: The solubilizer is selected from surfactants with an HLB value of 12 to 18, preferably surfactants with an HLB value of 14 to 18.

6. The air freshener according to claim 1, characterized in that: The chlorine dioxide precursor is selected from one or more of sodium chlorite, potassium chlorite, magnesium chlorite and barium chlorite.

7. The air freshener according to any one of claims 1 to 6, characterized in that: The preparation process of the ointment comprises the following steps: (1) adding an alkaline regulating substance to 5 parts by weight of deionized water to obtain a pH regulating buffer solution having a pH value of 7.5-8.5; (2) adding microbial gum and dispersant to the remaining deionized water in sequence, heating to 95 degrees and keeping the temperature for 1 hour to obtain a mixed solution 1; (3) After the temperature of the mixed solution 1 is naturally cooled to 70 degrees, a bridging agent, a pH adjustment buffer and a chlorine dioxide precursor are added in sequence and stirred evenly to obtain a mixed solution 2; (4) Mix the flavor and the solubilizer evenly and heat to 50 degrees, then add them to the mixed solution 2 in step (2) to obtain a mixed solution 3; (5) After the temperature of the mixed solution 3 is naturally cooled to 62 degrees, a color indicator is added, and then the mixed solution is bottled in the first cavity and cooled and solidified into a balm.

8. The air freshener according to claim 1, characterized in that: The alkaline regulating substance is selected from a mixture of sodium carbonate and sodium bicarbonate, a mixture of disodium hydrogen phosphate and sodium dihydrogen phosphate, or a mixture of boric acid and boric acid sand.

9. The air freshener according to claim 1, characterized in that: The active manganese component is a mixture of potassium permanganate and potassium manganate.

10. The air freshener according to claim 1, 8 or 9, characterized in that: The preparation process of the aldehyde removal beads comprises the following steps: (1) Bake the activated alumina powder at 100 degrees for 24 hours; (2) first add filler, sustained-release agent and binder to the baked activated alumina powder in sequence, preferably add active manganese component, fully disperse and stir evenly to obtain slurry; (3) forming the slurry into spherical particles; (4) Sintering the spherical particles at high temperature to obtain formaldehyde-removing beads.

Images