Antibacterial and deodorizing composition and functional core

Abstract

Provided are an antibacterial and deodorizing composition and a functional core prepared from the composition. The antibacterial and deodorizing composition comprises the following components in parts by mass: 10%-30% of a wormwood extract, 5%-30% of a grapefruit extract, 5%-20% of a haematococcus pluvialis extract, 5%-20% of citronellyl methylcrotonate, and the balance of a solvent. The antibacterial and deodorizing composition disclosed in the present invention not only exhibits broad-spectrum antibacterial and bactericidal effects on various microorganisms and thereby prevents symptoms such as allergy, inflammation, and erythema, but also can chelate substances such as amine, ammonia gas, and hydrogen sulfide in urine and demonstrate odor-masking effect, and thereby can effectively eliminate the odor of urine.

Description

An antibacterial and odor-removing composition and a functional chip

[0001] This application claims priority to Chinese Patent Application No. 202410500255.8, filed on April 24, 2024, entitled "An antibacterial and odor-removing composition and functional chip", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of hygiene products technology, specifically to an antibacterial and odor-removing composition and a functional chip. Background Technology

[0003] Disposable diapers are a type of disposable hygiene product. Due to their ease of wear and removal, and their ability to effectively isolate the user's excrement from clothing, they are widely used in infant care. Their safety and comfort are increasingly important considerations for mothers when choosing diapers. Ordinary diapers, after absorbing urine, emit an unpleasant ammonia-like odor, causing discomfort to both infants and mothers. Furthermore, if diapers are not changed promptly after absorbing urine, the urine-absorbing core inside the diaper may become damp due to urine, and the wearer's body heat creates a warm environment inside the diaper. This damp and warm environment is conducive to bacterial growth, and bacteria can penetrate the diaper's skin-friendly layer and come into contact with the wearer's skin, leading to symptoms such as allergies, inflammation, and rashes. Therefore, it is necessary to provide an antibacterial and deodorizing composition with antibacterial and deodorizing functions that can be applied to diapers, as well as a functional chip incorporating this antibacterial composition. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an antibacterial and odor-removing composition. This composition not only has a broad-spectrum antibacterial and bactericidal effect on a variety of microorganisms, avoiding symptoms such as allergies, inflammation, and rashes, but also can chelate substances such as amines, ammonia, and hydrogen sulfide in urine, masking odors and thus eliminating the smell of urine.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] The first aspect of the present invention provides an antibacterial and deodorizing composition comprising the following components in mass fractions: 10%–30% Artemisia argyi extract, 5%–30% grapefruit extract, 5%–20% Haematococcus pluvialis extract, 5%–20% methyl crotonic acid citronellol ester, and the balance being a solvent.

[0007] Furthermore, the composition also contains 5% to 20% of a humectant.

[0008] Furthermore, the moisturizer includes at least one selected from panthenol, sodium hyaluronate, glycerin, 1,2-propanediol, 1,3-butanediol, 1,2-hexanediol, and 1,2-pentanediol.

[0009] Furthermore, the composition also contains 0.5% to 5% of an antibacterial synergist.

[0010] Furthermore, the antibacterial synergist includes at least one of ethylhexylglycerin, 1,2-hexanediol, caprylyl glycol, p-hydroxyacetophenone, and capryloyl hydroxamic acid.

[0011] Furthermore, the composition also contains 0.01% to 0.1% of a pigment.

[0012] Furthermore, the pigment includes at least one of Gardenia Blue, Alizarin Red, and Citrus Yellow.

[0013] Furthermore, the antibacterial and deodorizing composition comprises, by mass fraction, the following components: 15%–25% Artemisia argyi extract, 5%–18% grapefruit extract, 5%–15% Haematococcus pluvialis extract, 5%–15% citronellol methyl crotonate, 8%–15% panthenol, 0.5%–2% ethylhexylglycerin, 0.01%–0.05% gardenia blue, and the balance being water.

[0014] Furthermore, the antibacterial and deodorizing composition comprises the following components by mass fraction: 20% Artemisia argyi extract, 10% grapefruit extract, 10% Haematococcus pluvialis extract, 10% methyl crotonic acid citronellol, 10% panthenol, 1% ethylhexylglycerin, 0.02% gardenia blue, and 38.98% water.

[0015] A second aspect of the present invention provides the application of the aforementioned antibacterial and odor-removing composition in an absorbent.

[0016] A third aspect of the present invention provides a functional chip for use in an absorber, the functional chip comprising:

[0017] Nonwoven fabric substrate; and

[0018] Functional structure, formed on the nonwoven fabric substrate;

[0019] The functional structure is obtained by printing the antibacterial and odor-removing composition onto the nonwoven fabric.

[0020] Furthermore, the nonwoven fabric includes at least one of spunbond nonwoven fabric, hot-air nonwoven fabric, hot-rolled nonwoven fabric, and spunlace nonwoven fabric.

[0021] Furthermore, the nonwoven fabric substrate is a hydrophilic nonwoven fabric substrate.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The antibacterial and deodorizing composition provided by the present invention can safely pass the skin allergy test and a complete skin irritation test, is non-irritating to the skin, and no skin allergy was observed, thus demonstrating high safety.

[0024] 2. The antibacterial and odor-removing composition provided by this invention has a broad-spectrum antibacterial and even bactericidal effect on a variety of microorganisms, including Staphylococcus aureus, Escherichia coli, Candida albicans, yeast, and fungi. Simultaneously, it can chelate substances such as amines, ammonia, and hydrogen sulfide in urine, masking odors and effectively eliminating urine odor. Furthermore, the antioxidant components it contains act as strong reducing agents to counteract oxidants in urine, effectively scavenging free radicals, protecting the skin barrier, and preventing skin damage.

[0025] 3. The antibacterial and deodorizing composition provided by this invention can be printed onto a non-woven fabric substrate to form a functional chip. The printing method allows for the addition of functional ingredients to meet the requirements of practical application, thus enabling the functional chip to have broad-spectrum antibacterial and even bactericidal effects, avoiding symptoms such as allergies, inflammation, and rashes. This functional chip can be applied to the flow-through layer of disposable absorbents, thus avoiding direct contact with air, eliminating concerns about excessive microbial levels, preventing machine contamination, and maintaining its effectiveness. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the planar structure of a functional chip in one embodiment of the present invention;

[0027] Figure 2 is a cross-sectional view of a functional chip in one embodiment of the present invention;

[0028] Among them: 1. Functional chip; 11. Non-woven fabric substrate; 12. Functional structure. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] As described in the background art, disposable absorbent materials such as diapers and menstrual pants absorb a large amount of liquid (such as urine) during use, which not only brings unpleasant odors but also leads to the proliferation of bacteria, causing skin allergies, inflammation, rashes, and other symptoms.

[0031] To address this technical problem, the present invention provides an antibacterial and odor-removing composition. This composition not only has broad-spectrum antibacterial and bactericidal effects on a variety of microorganisms, but also chelates substances such as amines and hydrogen sulfide in urine, masking odors and thus eliminating the smell of urine.

[0032] Specifically, the antibacterial and odor-removing composition provided by the present invention includes Artemisia argyi extract, grapefruit extract, Haematococcus pluvialis extract, methyl crotonic acid citronellol ester, and solvent.

[0033] Artemisia argyi extract is extracted from the dried leaves of Artemisia argyi, a plant in the Asteraceae family. It contains abundant volatile oils, flavonoids, triterpenoids, eucalyptols, tannins, polysaccharides, and other compounds. Its active ingredients are mainly volatile oils and flavonoids. Artemisia argyi extract has broad-spectrum antibacterial properties, inhibiting various cocci, most Gram-negative bacilli, fungi, and viruses. It can be used as a preservative and antibacterial agent in cosmetics and oral hygiene products. In addition, Artemisia argyi extract also has anti-inflammatory, anti-allergic, and antioxidant effects.

[0034] Grapefruit originated in Barbados, Central America, and is generally considered a natural hybrid of pomelo and orange. Grapefruit extract is extracted from the dried outer peel of ripe or nearly ripe grapefruits, and its active ingredients include glucosinolates and naringin. Grapefruit extract not only exhibits high antibacterial activity against Staphylococcus aureus, Escherichia coli, and Salmonella typhi, but is also a potent broad-spectrum antifungal agent. Furthermore, grapefruit extract has a strong free radical scavenging effect, providing anti-aging and antioxidant benefits. Additionally, grapefruit extract possesses a citrus aroma and can be used as an odor inhibitor.

[0035] Haematococcus pluvialis is a single-celled green algae that mainly grows in freshwater. It accumulates large amounts of astaxanthin, giving it a red color, hence its name. Haematococcus pluvialis extract contains 1.5% to 3.0% astaxanthin, a natural and highly effective antioxidant. Therefore, Haematococcus pluvialis extract can effectively scavenge free radicals and delay skin aging.

[0036] Citronellol methyl crotonate, scientifically known as 3,7-dimethyloct-6-enyl-3-methylbut-2-enoate, has the molecular formula: C 15 H 26 O2, structural formula: Citronellol methyl crotonate is a cosmetic fragrance that is unstable under alkaline conditions. It decomposes at room temperature in the presence of alkaline substances, releasing citronellol during the decomposition process. and dimethicone Citronellol has a fresh air scent, while dimethicone can react with amines, hydrogen sulfide, and other components in urine, thus eliminating the odor of urine.

[0037] In the composition provided by this invention, both Artemisia argyi extract and grapefruit extract are highly effective broad-spectrum antibacterial agents, inhibiting various microorganisms such as bacteria and fungi. Their combined use achieves a better antibacterial and bactericidal effect, thus preventing bacterial growth caused by prolonged dampness of the absorbent body after absorbing bodily fluids. Haematococcus pluvialis extract has strong antioxidant properties and can act as a strong reducing agent to counteract oxidants in urine, effectively scavenging free radicals, preventing skin damage, and further avoiding symptoms such as allergies, inflammation, and rashes. Citronellol methyl crotonate can absorb odor components such as amines and hydrogen sulfide in urine and emit a fresh fragrance, effectively eliminating unpleasant odors in bodily fluids, such as the smell of urine. Therefore, the composition of this invention has both comprehensive antibacterial and bactericidal effects and can eliminate urine odor.

[0038] In the composition provided by this invention, Artemisia argyi extract, grapefruit extract, and Haematococcus pluvialis extract are all natural extracts, and methyl crotonic acid citronellol is a commonly used fragrance in daily chemical products. Therefore, all components in the composition of this invention are green components, safe, non-toxic, and environmentally friendly, and can therefore be applied to disposable absorbent sanitary products such as baby diapers, sanitary napkins, menstrual pants, and adult diapers.

[0039] In some embodiments of the present invention, the proportion of Artemisia argyi extract in the composition, by mass fraction, is 10% to 30%, for example, it can be 10%, 12%, 15%, 16%, 18%, 20%, 22%, 24%, 25%, 28%, 30%, or any value between two values. Preferably, the proportion of Artemisia argyi extract is 15% to 25%, more preferably 20%.

[0040] In some embodiments of the present invention, the grapefruit extract in the composition comprises 5% to 30% by mass fraction, for example, 5%, 6%, 8%, 10%, 12%, 15%, 16%, 18%, 20%, 22%, 24%, 25%, 28%, 30%, or any value between two values. Preferably, the artemisia extract comprises 5% to 18%, more preferably 10%.

[0041] In some embodiments of the present invention, the Haematococcus pluvialis extract in the composition accounts for 5% to 20% by mass fraction, for example, 5%, 6%, 8%, 10%, 12%, 15%, 16%, 18%, 20%, or any value between two values. Preferably, the Artemisia argyi extract accounts for 5% to 15%, more preferably 10%.

[0042] In some embodiments of the present invention, the proportion of methyl crotonic acid citronellol in the composition, by mass fraction, is 5% to 20%, for example, it can be 5%, 6%, 8%, 10%, 12%, 15%, 16%, 18%, 20%, or any value between two values. Preferably, the proportion of Artemisia argyi extract is 5% to 15%, more preferably 10%.

[0043] In some embodiments of the present invention, the composition also contains a humectant. When used in a disposable absorbent, the composition is applied to fabric fibers in a "printed" manner. In this case, the humectant increases the adhesion between the composition and the fabric fibers, preventing the active ingredients from detaching from the fibers and ensuring that the amount of functional ingredients added reaches the optimal level, thereby enabling the active ingredients to achieve true antibacterial and deodorizing effects. On the other hand, it also moisturizes the skin, making it smooth and radiant. The humectant can be selected from commonly used moisturizing ingredients in cosmetics, including but not limited to at least one of panthenol, sodium hyaluronate, glycerin, 1,2-propanediol, 1,3-butanediol, 1,2-hexanediol, and 1,2-pentanediol, preferably panthenol. Panthenol not only has moisturizing effects but can also repair the skin barrier.

[0044] In some embodiments of the present invention, the proportion of the humectant in the composition, by mass fraction, is 5% to 20%, for example, it can be 5%, 6%, 8%, 10%, 12%, 15%, 16%, 18%, 20%, or any value between two values. Preferably, the proportion of the humectant is 8% to 15%, more preferably 10%.

[0045] In some embodiments of the present invention, the composition further contains an antibacterial synergist. The addition of the antibacterial synergist can further enhance the antibacterial and bactericidal abilities of the antibacterial components in the composition, while also improving the preservative effect. The antibacterial synergist can be selected from those commonly used in cosmetics, including but not limited to at least one of ethylhexylglycerin, 1,2-hexanediol, caprylyl glycol, p-hydroxyacetophenone, and capryloyl hydroxamic acid, preferably ethylhexylglycerin. Ethylhexylglycerin is an excellent antibacterial synergist, exhibiting a very high synergistic effect when used in combination with other antibacterial components. It can also act as a moisturizer, further increasing the adhesion between the composition and fabric fibers and improving the antibacterial effect, thereby preventing symptoms such as allergies, inflammation, and rashes, while also providing moisturizing and skin-softening effects.

[0046] In some embodiments of the present invention, the proportion of the antibacterial synergist in the composition, by mass fraction, is 0.5% to 5%, for example, it can be 0.5%, 0.8%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, or any value between two values. Preferably, the proportion of the antibacterial synergist is 0.5% to 2%, more preferably 1.0%.

[0047] In some embodiments of the present invention, the composition also contains pigments. When the composition is applied to fabric fibers by "printing", the printed area is colored due to the presence of pigments, which not only brings a certain visual differentiation, but also indicates the printed area, making it easy to determine whether the functional chip substrate has been printed with functional ingredients by color.

[0048] In some embodiments of the present invention, the pigment is preferably a natural food coloring, which is green, pollution-free, and highly safe. Such natural food colorings include, but are not limited to, at least one of Gardenia Blue, Alizarin Red, and Citrus Yellow.

[0049] In some embodiments of the present invention, the pigment content in the composition, by mass fraction, is 0.01% to 0.1%, for example, it can be 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.1%, or any value between two values. Preferably, the pigment content is 0.01% to 0.05%, more preferably 0.02%.

[0050] In this invention, the solvent is water, preferably deionized water.

[0051] In some embodiments of the present invention, the composition comprises, by mass fraction, the following components: 15%–25% Artemisia argyi extract, 5%–18% grapefruit extract, 5%–15% Haematococcus pluvialis extract, 5%–15% citronellol methyl crotonate, 8%–15% panthenol, 0.5%–2% ethylhexylglycerin, 0.01%–0.05% gardenia blue, and the balance being water.

[0052] In some embodiments of the present invention, the composition comprises the following components by mass fraction: 20% Artemisia argyi extract, 10% grapefruit extract, 10% Haematococcus pluvialis extract, 10% methyl crotonic acid citronellol, 10% panthenol, 1% ethylhexylglycerin, 0.02% gardenia blue, and 38.98% water.

[0053] The composition provided by this invention has excellent antibacterial and deodorizing effects, with an antibacterial rate of ≥99.9% against Staphylococcus aureus, ≥99.9% against Escherichia coli, and ≥55.0% against Candida albicans; a purification rate of ≥90.0% for ammonia, ≥90.0% for hydrogen sulfide, and ≥90.0% for dimethyl disulfide.

[0054] The antibacterial and odor-removing composition provided by the present invention is prepared by adding each component in the prescribed amount to a solvent and mixing them evenly to obtain the composition.

[0055] Furthermore, the composition of the present invention can be applied to disposable absorbent materials such as diapers and menstrual pants to obtain disposable absorbent materials with antibacterial, bactericidal, and odor-removing functions, thereby improving the comfort and safety of wearing them.

[0056] Specifically, please refer to Figures 1-2. This invention also provides a functional chip 1, comprising a nonwoven fabric substrate 11 and a functional structure 12, wherein the functional structure 12 is formed on the nonwoven fabric substrate 11. The functional structure 12 is obtained by printing the aforementioned composition as "ink" onto the nonwoven fabric substrate 11. The functional structure 12 is fixed to the nonwoven fabric substrate 11 by printing, allowing the composition constituting the functional structure to be partially or completely impregnated on the surface and interior of the nonwoven fabric substrate 11 (see Figure 2), thereby increasing the contact area between the functional structure 12 and bodily fluids and improving the bactericidal effect.

[0057] In this invention, there is no limitation on the type of nonwoven fabric substrate, including but not limited to at least one of spunbond nonwoven fabric, hot-air nonwoven fabric, hot-rolled nonwoven fabric, and spunlace nonwoven fabric.

[0058] In this invention, there are no restrictions on the printed shape of the functional structure, including but not limited to grid-like shapes (such as at least one of square grid, rhomboid grid, honeycomb, etc.), strip shapes (such as several parallel or intersecting strips, which can be straight lines or other arbitrary shapes, or two or more linear combinations), dot matrix, or matrix graphics formed by the combination of at least one or more geometric shapes, etc. In addition, various different patterns can be printed, such as figures, animals and plants, landscapes, etc.

[0059] In one embodiment of the present invention, the nonwoven fabric substrate in the above-mentioned functional chip is spunbond nonwoven fabric, and the preparation method of the functional chip is as follows:

[0060] S1. Add a flexographic printing machine after the spunbond nonwoven fabric production equipment, and use the prepared composition as the "ink" of the flexographic printing machine to print onto the spunbond nonwoven fabric;

[0061] S2. The printed spunbond nonwoven fabric is placed in an oven for drying. The oven temperature is set to 95℃~100℃. In the oven, the spunbond nonwoven fabric passes through multiple reciprocating transition rollers to increase the drying time of the spunbond nonwoven fabric in the oven.

[0062] S3. After the spunbond nonwoven fabric exits the drying oven, it is slit by a slitting knife, then subjected to stain image detection, and finally wound up in its entirety to obtain the functional chip.

[0063] In step S1 above, compared with spraying, printing can make the distribution of active ingredients on the substrate more uniform, without contaminating the machine, and can also print different patterns according to requirements.

[0064] In some embodiments, prior to printing the composition, the surface of the spunbond nonwoven fabric is preferably treated with a hydrophilic oil to improve its hydrophilicity. This allows the composition to be better printed onto the fibers of the spunbond nonwoven fabric during subsequent printing, improving wettability. Referring to Figure 2, the composition partially penetrates the nonwoven substrate. Furthermore, the hydrophilic oil treatment increases the contact amount and reaction time between urine and the composition when in contact with bodily fluids, thereby enhancing the antibacterial or bactericidal effect. The hydrophilic oil treatment can employ conventional hydrophilic treatment methods, which will not be elaborated upon here.

[0065] Currently, functional diapers on the market are generally manufactured using three methods: The first method involves adding trace amounts of functional ingredients during fiber production, then incorporating these ingredients into regular fibers. This is followed by hot-air nonwoven fabric production, which is then applied to the diaper's outer layer. In this method, the amount of functional ingredient added is extremely small, typically 1‰ to 3‰, resulting in no noticeable effect on the user. Another method involves microencapsulating specific ingredients into the outer layer material during production. This method offers the advantage of a sustained-release effect, allowing consumers to perceive the effects even after extended storage. However, the combination of microencapsulation and nonwoven fabric limits the amount added, resulting in limited efficacy. Furthermore, the high production speed and long material transport lines during absorbent body manufacturing can easily cause physical rupture of the microcapsules, leading to equipment contamination and a significant risk of excessive microbial contamination in the product. Another method is to spray or scrape the target ingredient or composition onto the surface. The advantage of this method is that there are no restrictions on the amount or types of ingredients added, but the disadvantages are severe machine contamination and difficulty in controlling microorganisms. At the same time, the oil-soluble components in the components of existing functional materials on the market can cause a decrease in hydrophilicity and absorption performance, while water-soluble components can easily cause the product to have excessive water content, weak adhesion to the surface layer, easy falling off of the ingredients, and poor efficacy.

[0066] In this invention, the composition is printed onto the surface of a nonwoven fabric to obtain a functional chip, thus the amount and type of functional ingredients added are unrestricted. Furthermore, the functional chip is prefabricated, and during diaper production, it is embedded in the guide layer between the surface nonwoven fabric and the absorbent core outer wrapping fabric. Since the guide layer is located between the surface layer and the absorbent core, and the functional chip is also positioned between the surface layer and the absorbent core, the functional chip does not come into direct contact with air, eliminating concerns about excessive microorganisms and preventing machine contamination. Crucially, its efficacy is not affected, and may even be improved. Additionally, this prefabricated functional chip allows for customized design based on consumer needs; furthermore, this prefabricated chip method avoids the loss of raw materials and equipment efficiency caused by frequent equipment cleaning to accommodate different ingredient additions, reducing production costs and improving economic efficiency.

[0067] The present invention will be further described below with reference to specific embodiments and comparative examples.

[0068] In the following examples and comparative examples, Artemisia argyi extract was purchased from Inger Biotech, grapefruit extract was purchased from Sildenafil, Haematococcus pluvialis extract was purchased from Greenaltech in Spain, and methyl crotonic acid citronellol was purchased from Givaudan.

[0069] Example 1

[0070] This embodiment provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 20% Artemisia argyi extract, 10% grapefruit extract, 10% Haematococcus pluvialis extract, 10% methyl crotonic acid citronellol, 10% panthenol, 1% ethylhexylglycerin, 0.02% gardenia blue, and 38.98% deionized water.

[0071] The method for preparing the antibacterial and odor-removing composition in this embodiment is as follows:

[0072] S1. Add some deionized water to the container, then add Artemisia argyi extract, grapefruit extract, Haematococcus pluvialis extract and panthenol, stir until well mixed to obtain a mixture;

[0073] S2. Transfer the obtained mixture to a homogenizer, add methyl crotonic acid citronellol ester and ethylhexylglycerin, and homogenize at 45℃~55℃ and a speed of 1000~2000r / min for 10~20min to obtain a homogeneous emulsion.

[0074] S3. Add gardenia blue to the obtained emulsion and add the remaining deionized water, stir well to obtain an antibacterial and deodorizing composition.

[0075] Example 2

[0076] This embodiment provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 16% Artemisia argyi extract, 12% grapefruit extract, 12% Haematococcus pluvialis extract, 8% methyl crotonate citronellol, 12% sodium hyaluronate, 1.5% ethylhexylglycerin, 0.02% gardenia blue, and 38.48% deionized water.

[0077] The preparation method of the composition in this embodiment is the same as that in Example 1.

[0078] Example 3

[0079] This embodiment provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 22% Artemisia argyi extract, 8% grapefruit extract, 10% Haematococcus pluvialis extract, 12% methyl crotonate citronellol, 6% 1,2-propanediol, 0.8% ethylhexylglycerin, 0.02% gardenia blue, and 41.18% deionized water.

[0080] The preparation method of the composition in this embodiment is the same as that in Example 1.

[0081] Example 4

[0082] This embodiment provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 16% Artemisia argyi extract, 13% grapefruit extract, 12% Haematococcus pluvialis extract, 15% methyl crotonate citronellol, 0.8% ethylhexylglycerin, 0.02% gardenia blue, and 43.18% deionized water.

[0083] The preparation method of the composition in this embodiment is the same as that in Example 1.

[0084] Example 5

[0085] This embodiment provides an antibacterial and odor-removing composition comprising the following components by mass fraction: 20% Artemisia argyi extract, 10% grapefruit extract, 10% Haematococcus pluvialis extract, 10% methyl crotonic acid citronellol, 10% panthenol, 0.02% gardenia blue, and 39.98% deionized water.

[0086] The preparation method of the composition in this embodiment is the same as that in Example 1.

[0087] Comparative Example 1

[0088] This comparative example provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 30% grapefruit extract, 10% Haematococcus pluvialis extract, 10% methyl crotonate citronellol, 10% panthenol, 1% ethylhexylglycerin, 0.02% gardenia blue, and 38.98% deionized water.

[0089] The composition of this comparative example was prepared using the same method as in Example 1.

[0090] Comparative Example 2

[0091] This comparative example provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 30% Artemisia argyi extract, 10% Haematococcus pluvialis extract, 10% methyl crotonate citronellol, 10% panthenol, 1% ethylhexylglycerin, 0.02% gardenia blue, and 38.98% deionized water.

[0092] The composition of this comparative example was prepared using the same method as in Example 1.

[0093] Comparative Example 3

[0094] This comparative example provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 20% Artemisia argyi extract, 10% grapefruit extract, 10% methyl crotonate citronellol, 10% panthenol, 1% ethylhexylglycerin, 0.02% gardenia blue, and 48.98% deionized water.

[0095] The composition of this comparative example was prepared using the same method as in Example 1.

[0096] Comparative Example 4

[0097] The comparative example provides an antibacterial and deodorizing composition comprising the following components by mass fraction: 20% Artemisia argyi extract, 10% grapefruit extract, 10% Haematococcus pluvialis extract, 10% panthenol, 1% ethylhexylglycerin, 0.02% gardenia blue, and 48.98% deionized water.

[0098] The composition of this comparative example was prepared using the same method as in Example 1.

[0099] Experiments and Tests

[0100] 1. A complete skin irritation test

[0101] Three New Zealand rabbits, weighing between 2.36 kg and 2.52 kg, were selected as experimental animals. The laboratory temperature ranged from 21.3 to 23.5℃, and the relative humidity ranged from 52.7% to 58.6%. Twenty-four hours before the experiment, the hair on both sides of the spine on the backs of the experimental animals was shaved, with each side measuring 3 cm × 3 cm. The composition from Example 1 was prepared into a functional chip and embedded between the surface non-woven fabric and the absorbent core outer covering fabric to obtain the finished diaper. This finished diaper was used as the test sample, applied to one side of the skin, covered with a layer of cellophane, and then fixed with non-irritating adhesive tape. The other side of the skin served as a control. The application time was 4 hours. After the experiment, the residue was removed by washing with warm water. The results were observed and scored at 1 hour, 24 hours, and 48 hours after removing the test sample to determine the skin irritation intensity. The control area was treated in the same way as the test area, and the irritation response was scored according to the "Cosmetic Hygiene Standard (2015 Edition)". The results are shown in Table 1.

[0102] Table 1 Results of a single complete skin irritation test on the finished diaper products

[0103] As shown in Table 1, the composition of Example 1 passed the skin irritation test safely, without any irritation or other toxicity.

[0104] 2. Skin allergy test

[0105] Albino guinea pigs weighing 200g–300g were selected as experimental subjects. The laboratory temperature was 20–25℃, and the relative humidity was 50%–55%. Skin allergy tests were conducted using the local occlusive application method, and the scores were determined according to the "Cosmetic Hygiene Standard (2015 Edition)". The results are shown in Table 2. The experimental group used the composition of Example 2.

[0106] Table 2 Results of skin allergy tests on the compositions

[0107] As can be seen from the results in Table 2, the composition of Example 1 can safely pass the skin allergy test and has good safety.

[0108] 3. Antibacterial test

[0109] Take 5 mL of each of the compositions prepared in Examples 1-5 and Comparative Examples 1-4, and test their antibacterial properties according to Appendix C4 of GB15979-2002: Standard for Disposable Hygiene Products - Test Method for Antibacterial Performance of Dissolution Antibacterial (Inhibitory) Products. The results are shown in Table 3.

[0110] Table 3. Antimicrobial test results of the compositions

[0111] Please refer to Table 3. The compositions of Examples 1-5 all exhibit good inhibitory effects against Candida albicans, Escherichia coli, and Staphylococcus aureus, with inhibition rates exceeding 99% at 5 minutes and exceeding 99.95% at 20 minutes. Compared to Example 1, the composition of Example 5 did not contain the antibacterial synergist ethylhexylglycerin, resulting in a slightly lower 5-minute inhibition rate than Example 1, but its 20-minute inhibition rate was essentially the same as that of Example 1. This indicates that adding ethylhexylglycerin to the composition can improve the antibacterial effect.

[0112] In the compositions of Comparative Examples 1 and 2, only Artemisia argyi extract and grapefruit extract were added, respectively. The results showed that the antibacterial effects at both 5 min and 20 min were significantly lower than those in Example 1. This indicates that the combination of Artemisia argyi extract and grapefruit extract, two natural extracts, can achieve a synergistic effect and improve the antibacterial effect against Candida albicans, Escherichia coli, and Staphylococcus aureus.

[0113] In addition, the composition of Example 1 was made into a functional chip and embedded between the surface nonwoven fabric and the absorbent core outer wrapping fabric to obtain the finished diaper. The antibacterial properties of the finished diaper were tested according to GB15979-2002 "Hygienic Standard for Disposable Sanitary Products", and the results are shown in Table 4.

[0114] Table 4. Antibacterial test results of finished diapers

[0115] As can be seen from Table 4, the antibacterial test results of the finished diaper are similar to those in Table 3. The 5-minute antibacterial effect against Candida albicans, Escherichia coli and Staphylococcus aureus all exceeded 99%, demonstrating excellent antibacterial effect.

[0116] 4. Odor removal test

[0117] (1) Sample preparation

[0118] S1. The compositions of Examples 1-5 and Comparative Examples 1-4 are used as "inks" to print onto spunbond nonwoven fabrics, with a printed area ≥200 cm². 2 ;

[0119] S2. The printed spunbond nonwoven fabric is dried in a multi-stage drying oven. The oven temperature is set to 95℃ and the total drying time is 2 minutes.

[0120] S3. After the spunbond nonwoven fabric exits the drying oven, it is slit in the printing area to obtain a 100cm² area. 2 The sample.

[0121] (2) Test method

[0122] The deodorization performance of the prepared samples and blank samples was tested according to the method specified in GB / T 33610.2-2017 Determination of deodorization performance of textiles - Part 2: Detection tube method. The results are shown in Table 5.

[0123] Table 5. Odor-eliminating performance test results

[0124] Please refer to Table 5. The samples in Examples 1 to 5 all have excellent removal effects on ammonia, hydrogen sulfide and dimethyl disulfide, with odor reduction rates all exceeding 90%.

[0125] Compared to Example 1, the composition in Comparative Example 4 did not contain methyl crotonic acid citronellol, resulting in a significant decrease in its ability to remove odor components. The removal rate for ammonia was only 21.8%, and the removal rates for hydrogen sulfide and dimethyl disulfide were less than 20%. This indicates that methyl crotonic acid citronellol has a good removal effect on odor components such as ammonia, hydrogen sulfide, and dimethyl disulfide. When this composition is used in disposable hygiene products, it can effectively chelate substances such as amines, ammonia, and hydrogen sulfide in urine, thereby removing the urinary odor.

[0126] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A bactericidal and odor-removing composition, characterized in that, It includes the following components by mass fraction: 10%–30% Artemisia argyi extract, 5%–30% grapefruit extract, 5%–20% Haematococcus pluvialis extract, 5%–20% methyl crotonic acid citronellol ester, and the balance being solvent.

2. The antibacterial and odor-removing composition according to claim 1, characterized in that, The composition also contains 5% to 20% of a humectant; and / or, The moisturizer includes at least one of panthenol, sodium hyaluronate, glycerin, 1,2-propanediol, 1,3-butanediol, 1,2-hexanediol, and 1,2-pentanediol.

3. The antibacterial and odor-removing composition according to claim 1, characterized in that, The composition further comprises 0.5% to 5% of an antibacterial synergist; and / or, The antibacterial synergist includes at least one of ethylhexylglycerin, 1,2-hexanediol, caprylyl glycol, p-hydroxyacetophenone, and caprylyl hydroxamic acid.

4. The antibacterial and odor-removing composition according to claim 1, characterized in that, The composition further comprises 0.01% to 0.1% of a pigment; and / or, The pigments include at least one of Gardenia Blue, Alizarin Red, and Citrus Yellow.

5. The antibacterial and odor-removing composition according to claim 1, characterized in that, It comprises the following components by mass fraction: 15%–25% Artemisia argyi extract, 5%–18% grapefruit extract, 5%–15% Haematococcus pluvialis extract, 5%–15% methyl crotonic acid citronellol, 8%–15% panthenol, 0.5%–2% ethylhexylglycerin, 0.01%–0.05% gardenia blue, and the balance being water.

6. The antibacterial and odor-removing composition according to claim 5, characterized in that, It includes the following components by mass fraction: Artemisia argyi extract 20%, grapefruit extract 10%, Haematococcus pluvialis extract 10%, methyl crotonate citronellol 10%, panthenol 10%, ethylhexylglycerin 1%, gardenia blue 0.02%, and water 38.98%.

7. The use of the antibacterial and deodorizing composition according to any one of claims 1 to 6 in an absorbent.

8. A functional chip for use in an absorber, characterized in that, The functional chip includes: Nonwoven fabric substrate; and Functional structure, formed on the nonwoven fabric substrate; The functional structure is obtained by printing the antibacterial and odor-removing composition according to any one of claims 1 to 6 onto the nonwoven fabric substrate.

9. A functional chip according to claim 8, characterized in that, The nonwoven fabric substrate includes at least one of spunbond nonwoven fabric, hot-air nonwoven fabric, hot-rolled nonwoven fabric, and spunlace nonwoven fabric.

10. A functional chip according to claim 8, characterized in that, The nonwoven fabric substrate is a hydrophilic nonwoven fabric substrate.

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