TWI746386B - Antimicrobial foaming composition, antimicrobial foaming material including the same and method of manufacturing the same - Google Patents

Abstract

The present invention relates to an antimicrobial foaming composition, antimicrobial foaming material including the same and method of manufacturing the same. The antimicrobial foaming composition includes a first ethylene vinyl acetate (EVA) copolymer, a second EVA copolymer and a few amount of natural inorganic antimicrobial material, the second EVA copolymer has more vinyl acetate (VA) content than the one of the first EVA copolymer, for advantageously improving foaming property of the antimicrobial foaming material, as well as endowing it with better antimicrobial property, thereby being applied on leisure and sport products.

Description

Antibacterial foaming composition, antibacterial foaming material containing the same, and manufacturing method thereof

The present invention relates to a foaming composition, in particular to an antibacterial foaming composition that is easily foamed with natural inorganic antibacterial materials, an antibacterial foaming material containing the same, and a manufacturing method thereof.

Ethylene vinyl acetate (EVA) copolymer foam material has good flexibility, elasticity, chemical resistance, colorability and light weight. In recent years, it has become a leisure sports product (such as shoe soles, insoles, yoga mats). Etc.) mainstream. However, when the expansion ratio of EVA foam material is higher, the permanent deformation of the material is greater, the mechanical properties are significantly reduced, and the wear resistance is poor, which will reduce its applicability. Furthermore, when the EVA foam material is applied to leisure sports products, sweat and dirt are likely to remain in the voids of the EVA foam material, and it is easy to breed bacteria and peculiar smell.

One of the conventional solutions is to apply an antibacterial agent or attach an antibacterial material to the surface of the above-mentioned EVA sports product, or to soak the entire product in a solution containing an antibacterial agent. However, after using these products for a period of time, the antibacterial agent on the surface is easy to fall off or decompose, which will reduce the antibacterial effect of the product itself, and long-term exposure of the human body to such antibacterial agents may have potential adverse effects.

In view of this, there is an urgent need to provide an antibacterial foaming composition, an antibacterial foaming material containing the same, and a manufacturing method thereof, so as to improve various problems of the conventional antibacterial foaming composition.

Therefore, one aspect of the present invention is to provide an antibacterial foaming composition, which includes a first ethylene vinyl acetate (EVA) copolymer, a second EVA copolymer, and a small amount of natural inorganic antibacterial materials, which can effectively improve foaming properties It also has antibacterial properties.

Another aspect of the present invention is to provide an antibacterial foaming material, which comprises the above-mentioned antibacterial foaming composition, and the antibacterial foaming material has a bacteriostatic rate of not less than 99.0%, which can be applied to shoe soles, insoles, yoga mats, etc. In daily necessities.

Another aspect of the present invention is to provide a method for manufacturing an antibacterial foam material, which involves subjecting the antibacterial foam composition to a mixing process and a foaming process to improve the expansion ratio of the antibacterial foam material.

According to the above aspect of the present invention, an antibacterial foam composition is proposed. In one embodiment, the antibacterial foaming composition may include, for example, 100 parts by weight (parts per hundreds of resin, phr) of polymer, 4.5 parts by weight to 10 parts by weight of natural inorganic antibacterial material, and 3 parts by weight to 15 parts by weight of foaming additives. In the above embodiment, the aforementioned polymer may comprise at least 50% to 80% by weight of the first ethylene vinyl acetate (EVA) copolymer [Vinyl acetate (VA) content is less than 22%, melt index (MI) is less than _2.16 10 g/10 minutes] and 20 to 50 weight percent of the second EVA copolymer (VA content is equal to or greater than 28%, MI _2.16 is equal to or greater than 10 g/10 minutes).

In the above embodiment, the difference between the VA content of the aforementioned first EVA copolymer and the VA content of the second EVA copolymer may be, for example, 7% to 26%.

In the above embodiment, the VA content of the aforementioned first EVA copolymer may be, for example, 14% to 21%, and the MI _2.16 may be, for example, 2.5 g/10 minutes. In another embodiment, the VA content of the second EVA copolymer may be, for example, 28% to 40%, and MI _2.16 may be, for example, 10 g/10 minutes to 65 g/10 minutes.

In the above embodiment, the aforementioned natural inorganic antibacterial material may be calcined shellfish shell powder, for example. In an example, the shellfish shell calcined powder may be derived from, for example, a single shell shell and/or a bivalve shell. In other examples, the aforementioned antibacterial foaming composition may include, for example, 6 parts by weight to 10 parts by weight of natural inorganic antibacterial materials.

In the above embodiments, the aforementioned foaming additives may include, for example, foaming agents, bridging agents, foaming aids, and bridging aids.

According to another aspect of the present invention, an antibacterial foaming material is provided, comprising the above-mentioned antibacterial foaming composition, wherein the antibacterial foaming material has an inhibitory rate of not less than 99.0% against Escherichia coli and Staphylococcus aureus, and is antibacterial The shrinkage rate of the foamed material can be, for example, not more than 2%. In a specific example, the aforementioned antibacterial foam material may include shoe soles, insoles, and yoga mats.

According to another aspect of the present invention, a method for manufacturing an antibacterial foaming material is provided, which includes providing the antibacterial foaming composition, and performing a mixing process and a foaming process on the antibacterial foaming composition to obtain antibacterial foaming The foaming ratio of the antibacterial foaming composition can be, for example, not less than 1.70.

The antibacterial foaming composition of the present invention, the antibacterial foaming material containing the same, and the manufacturing method thereof, which comprise a first EVA copolymer, a second EVA copolymer with a higher VA content, and a small amount of natural inorganic antibacterial materials are effective Improve the foaming properties of antibacterial foam materials, and give them better antibacterial properties, so that they can be used in various leisure sports products.

With the following detailed description and with reference to the accompanying drawings, the embodiments of the present invention will be described in detail below. The same drawing numbers used in the drawings and manuals refer to the same or similar parts as far as possible.

All references cited here are deemed to be specific and individually incorporated into references by citing each individual document or patent application. If the definition or usage of a term in the cited document is inconsistent with or contrary to the definition of the term here, the definition of the term here applies instead of the definition of the term in the cited document.

To interpret the specification, the following definitions will apply. Where appropriate, singular nouns also include plural nouns, and vice versa. The entire detailed description sets out additional definitions.

Unless the context is inappropriate, the "一 (a/an)" and "the (the/said)" mentioned here are defined as "one or more" and include plural types.

As mentioned above, the present invention provides an antibacterial foaming composition, an antibacterial foaming material containing the same, and a manufacturing method thereof, which comprises a first ethylene vinyl acetate (EVA) copolymer, a second EVA copolymer, and a small amount of natural Inorganic antibacterial materials can effectively improve the foaming properties of antibacterial foam materials and give them better antibacterial properties.

The "antibacterial foaming composition" described herein may include, but is not limited to, 100 parts by weight of polymers, 4.5 parts by weight to 10 parts by weight of natural inorganic antibacterial materials, and 3 parts by weight to 15 parts by weight of foaming additives . In a specific example, the antibacterial foaming composition may include, for example, 6 parts by weight to 10 parts by weight of natural inorganic antibacterial materials.

In the above embodiments, the aforementioned polymer may include at least 50% to 80% by weight of the first EVA copolymer and 20% to 50% by weight of the second EVA copolymer. Generally speaking, the first EVA copolymer has a vinyl acetate (VA) content of, for example, less than 22% and a melt index (MI) of _2.16, for example, less than 10 g/10 minutes. However, the VA content of 14% to 21%, MI _2.16 It is preferably 2.5 g/10 minutes. In some specific examples, the first EVA copolymer can be a commercially available product, such as but not limited to Taisox model 7340M (VA content 14%, MI _2.16 is 2.5 g/10 minutes), Formosa olefin model 7350M (VA content 18%, MI _2.16 is 2.5 g/10 minutes), Formosa Plastics model 7360M (VA content 21%, MI _2.16 is 2.5 g/10 minutes), etc., but the present invention is not limited to those listed here.

In one embodiment, the aforementioned second EVA copolymer is preferably one with a higher VA content than the first EVA copolymer (also known as VA elastomer or EVA copolymer with high VA content), so as to improve the antibacterial The elasticity of the foamed material and increase the expansion ratio. In some specific examples, the VA content of the second EVA copolymer may be, for example, equal to or greater than 28%, MI _2.16, for example, at least 10 g/10 minutes, and the VA content is 28% to 40%, MI _2.16 10 g. /10 minutes to 65 g/10 minutes is preferred. In other specific examples, the second EVA copolymer can be commercially available products, including but not limited to Formosa Plastics model 7670S (VA content 28%, MI _2.16 is 10 g/10 minutes), Formosa Plastics model 7880H (VA The content is 40%, MI _2.16 is 65 g/10 minutes), etc., but the present invention is not limited to those listed here.

It is explained here that if the aforementioned polymer does not contain the second EVA copolymer, or the content of the aforementioned polymer’s second EVA copolymer is less than 20% by weight, the foamability of the antibacterial foam material containing these compositions And flexibility is not good. The "foaming property" referred to here is judged by the expansion ratio of the antibacterial foam material, based on the average length and width of the antibacterial foam material before foaming as 1 time, if the expansion ratio of the antibacterial foam material is less than 1.70 , It is judged that its foaming property is not ideal. The "elasticity" referred to here is judged by the rebound strength (%) of the antibacterial foam composition. If the rebound strength of the antibacterial foam material is less than 40%, the elasticity is judged to be less than ideal.

In the above embodiment, the aforementioned natural inorganic antibacterial material may be calcined shellfish shell powder, for example. As we all know, shellfish is one of the delicacies of Taiwan and even other countries. However, the discarded shells left behind after shellfish are eaten become a large amount of solid waste that is not easy to handle. Taking oyster shells as an example, about 170,000 tons of solid waste are generated every year, which are prone to foul smell when stacked outdoors. The invention uses shellfish shells, the shellfish shell calcined powder obtained after processing has antibacterial properties and high whiteness, and can be used as a natural inorganic antibacterial material, which is not only environmentally friendly, but also improves the value of recycling and reuse of waste shells.

In one embodiment, the aforementioned calcined shellfish shell powder may be derived from, for example, a single shell shell and/or a bivalve shell, and the type is not particularly limited. In some examples, the shell and/or bivalve shell of mollusks may be oysters, clams, clams, nine holes, peacock clams, sail shells, abalones, pearl shells, butterfly shells and scallops. In some embodiments, the calcined shellfish shell powder can be prepared by the following steps. (a) Carry out a pre-processing step on the shellfish shell to obtain shellfish shell particles. (b) Alkaline coating step is performed on shellfish shell particles. (c) Perform a calcining step on the alkali-coated particles to obtain calcined particles. (d) Perform a grinding step on the calcined particles to obtain calcined shellfish shell powder.

In some embodiments, the pre-treatment step may include, but is not limited to, for example, removing residual meat and impurities in the shellfish shell, performing surface cleaning and coarse crushing steps to obtain shellfish shell particles.

In some embodiments, the alkali coating step can coat shellfish shell particles with calcium salt slurry for 2 hours to 4 hours, the calcium salt slurry contains at least 2.5 wt.% calcium salt, shellfish shell particles and calcium salt slurry The weight-to-volume ratio (g/mL) can be 0.1 to 1, for example. In some embodiments, the calcium salt may be calcium hydroxide, for example. In some embodiments, the calcination step is performed at a temperature of 900°C to 1200°C. In some embodiments, the calcination time is 3 hours to 6 hours. The calcined shellfish shell powder thus obtained has a core-shell structure, wherein the core layer of the core-shell structure can be, for example, micron-sized calcium oxide particles, and the shell layer of the core-shell structure is nano-sized to sub-micron-sized calcium oxide particles. . The average particle size of the calcined shellfish shell powder may be, for example, not more than 500 μm, but preferably 7 μm to 425 μm [corresponding to 2000 mesh to 35 mesh]. The aforementioned calcined shellfish shell powder can release oxygen-containing free radicals to provide antibacterial ability. In a specific example, the antibacterial properties of the antibacterial foaming material containing the aforementioned antibacterial foaming composition can be evaluated using a conventional test method, such as the CNS 15823 antibacterial test method, and based on the measured antibacterial rate. After evaluation, the antibacterial rate of the antibacterial foaming material against Escherichia coli and Staphylococcus aureus can be, for example, not less than 99.0%, and preferably not less than 99.9%.

It is noted here that if the aforementioned antibacterial foamed composition is not added with shellfish shell calcined powder, or the addition amount is less than 4.5 parts by weight or greater than 10 parts by weight, the resulting antibacterial foamed composition cannot have both foaming properties and antibacterial properties. sex.

In one embodiment, the foaming additives contained in the antibacterial foaming composition can be, for example, foaming agents, bridging agents, foaming aids, and bridging aids. The aforementioned foaming additives can use various conventional products and should be based on The invention is well known to those with ordinary knowledge in the technical field to which the invention belongs, and will not be repeated here.

In one embodiment, the antibacterial foaming composition described above can be made into an antibacterial foaming material by a conventional process. In short, the above-mentioned antibacterial foaming composition is first provided, wherein the antibacterial foaming composition includes 100 parts by weight of polymer, 4.5 parts by weight to 10 parts by weight of natural inorganic antibacterial material, and 3 parts by weight to 15 parts by weight The foaming additives. The polymers, natural inorganic antibacterial materials and foaming additives are the same as described above, wherein the weight ratio of the first EVA copolymer to the second EVA copolymer can be, for example, 1:1 to 4:1. Then, the antibacterial foaming composition is subjected to a kneading process and a foaming process to obtain an antibacterial foaming material, wherein the expansion ratio of the antibacterial foaming composition can be, for example, not less than 1.70.

In one embodiment, the aforementioned mixing process can be performed using a commercially available single-screw or twin-screw mixer. After the plastic masterbatch is prepared, the molding and foaming process is performed in a commercially available mold to obtain an antibacterial foam material. The above-mentioned mixing process and foaming process are also well-known to those with ordinary knowledge in the technical field of the present invention, so they will not be described in detail.

The antibacterial foam material prepared by the antibacterial foam composition of the present invention not only effectively improves the foamability and elasticity of the antibacterial foam material, but also imparts better antibacterial properties and dimensional stability. It is added that since the natural inorganic antibacterial material has been evenly distributed in the antibacterial foam material, after a period of use, even if the antibacterial foam material is slightly worn out, it will not affect the antibacterial properties of the antibacterial foam material.

Several embodiments are used below to illustrate the application of the present invention, but they are not used to limit the present invention. Those with ordinary knowledge in the technical field of the present invention can make various modifications and changes without departing from the spirit and scope of the present invention. Retouch. Example 1: Preparation of calcined shellfish shell powder

First, after removing the residual meat from the waste oyster shells and washing the surface, it is roughly pulverized into oyster shell powder (average particle size of about 35 mesh) using commercially available crushing equipment. Then, a calcination step is performed at a temperature of 1000° C. to obtain calcined oyster shell powder, wherein the average particle size of the calcined oyster shell powder is 7 μm to 425 μm [equivalent to 2000 mesh to 35 mesh]. Example 2: Preparation of antibacterial foam material Preparation Example 1

First, according to Table 1, the first EVA copolymer, the second EVA copolymer (ie high VA elastomer), the calcined oyster shell powder of Example 1, and the foaming additives (including foaming agent, bridging agent, foaming Additives and bridging additives) After mixing in a single-screw or twin-screw mixer and preparing the plastic masterbatch, it is then subjected to a molding and foaming process in a commercially available mold to obtain an antibacterial foaming material, and then proceed to follow-up Evaluate. Preparation Examples 2 to 4 and Preparation Comparative Examples 1 to 10

Preparation Examples 2 to 4 and Preparation Comparative Examples 1 to 10 were prepared according to Table 1 and Table 2 using the same process as Preparation Example 1, except that the antibacterial foaming compositions of Preparation Examples 2 to 4 and Preparation Comparative Examples 1 to 10 Department of using different specifications of ingredients or different dosages. Example 3: Evaluation method of antibacterial foam material 1. Foaming ratio

The original mold scale mark of the foam material is length*10 cm/width*10 cm. Use a vernier caliper to measure the length and width dimensions of the foam material after cooling, and calculate it according to the following formula (I): Foaming ratio [(length ratio +width magnification)/2] = [(L1/L)+(W1/W)]/2 (I) In formula (I), L represents the length of the original length marking line, and W represents the length of the original width marking line. L1 represents the length of the length marking line after the test, W1 represents the width of the marking line length after the test. The results are shown in Table 1 and Table 2. The higher the foaming ratio, the better the foaming properties of the foamed material. 2. Rebound strength

Cut the foam material to a thickness of 12.7±0.5mm and a diameter of 29.0±0.5 mm, and place it under the weight of a commercially available vertical rebound test machine. Drop the weight from the highest point 100 to hit the sample, and observe the rebound position. , Repeat the above action and take the average of the three results. The results are shown in Table 1 and Table 2. The higher the rebound strength, the better the elasticity of the foam material. 3. Shrinkage

Cut the foam material into a 10×10 cm square test piece, draw a cross-shaped mark, and place the test piece in an oven at 70°C for 40 minutes. After taking out the sample and cooling it, measure the size of the marking line of the foam material and calculate it according to the following formula (II): Shrinkage rate (%)=[(L-L1)/L] ×100% (II) 　　　　 in the formula (II) Among them, L represents the length of the original marking line, and L1 represents the length of the marking line after the test. The results are shown in Table 1 and Table 2. The lower the shrinkage rate, the better the dimensional stability of the foamed material. 4. Inhibition rate

The antibacterial rate of the antibacterial foaming material surface was evaluated using CNS 15823 formulated by the National Standards of the Republic of China (CNS). First, cut the above-mentioned preparation example and preparation comparative example into 5 cm × 5 cm test pieces, and clean them with 70% by volume alcohol. The number of test pieces in each group is not less than 3.

Next, Staphylococcus aureus (BCRC 10451) and Escherichia coli (BCRC 11634) purchased from the Bioresource Collection and Research Center (BCRC) at No. 331 Food Road, Hsinchu City Freeze-dried strains were subcultured twice with a slant medium to obtain activated cells. The slant medium contains 5.0 g meat essence, 10.0 g egg whites, 5.0 g sodium chloride and 15.0 g agar powder per liter. And each subculture is cultured at 35°C for 16 hours to 24 hours.

Then, use the suspension culture medium (dilute the culture medium containing 3.0 g of meat essence, 10.0 g of eggplant, 5.0 g of sodium chloride per liter to 500 times the original volume) and the activated bacteria to make the concentration per ml About 6×10 ⁵ cells of bacteria liquid. Then, the bacterial solution was inoculated on the above test piece, and then a film (low-density vinyl film, 4 cm × 4 cm) was covered on the bacterial solution. It is worth noting that when covering the film, take care not to let the bacterial liquid overflow outside the range of the film. Then, count the number of bacteria in the bacterial solution of the 3 preparation comparative examples, and continue the cultivation of the remaining preparation comparative examples and preparation examples (35°C, 24 hours of Staphylococcus aureus culture, 12 hours of E. coli culture), and then count the bacteria number. Next, use formula (III) to calculate the bacteriostatic rate (R, %). R%=[(U _t -U ₀ )-(A _t -U ₀ )]/% (III) In formula (III), R% represents the antibacterial percentage, and U ₀ represents the logarithm of bacteria culture broths processing of the, U _t represents a test piece Comparative Example of the preparation by the logarithm of the bacterial cell suspension processing of the number of cultured on, a _t expressed by the logarithm of the bacterial cell suspension processing of the number of culture on the test piece, which The results are shown in Table 1 and Table 2.

As shown in Table 1, the antibacterial foaming compositions of Preparation Examples 1 to 4 added a second EVA copolymer with a greater VA content than the first EVA copolymer. After the calcined oyster shell powder of Example 1 was added, the antibacterial hair was effectively improved. The foaming ratio and rebound strength of the foam material. The foaming ratio is not less than 1.70, and the rebound strength is not less than 40%. It also has better antibacterial properties (bacteriostatic rate of 99.9%) and dimensional stability (shrinkage rate). Not more than 2.0%), it does improve the shortcomings of adding calcined oyster shell powder.

[表2]

第一EVA共聚體：台塑烯，型號7340M，VA 14%，MI _2.162.5 g/10min                                   台塑烯，型號7350M，VA 18%，MI _2.162.5 g/10min                                   台塑烯，型號7360M，VA 21%，MI _2.162.5 g/10min 高VA含量EVA共聚物：台塑烯，型號7670S，VA 28%，MI _2.1610 g/10min It can be seen from the results in Table 2 that, in comparison, the antibacterial foam material made of only a single EVA copolymer can give it better antibacterial properties and dimensional stability after adding calcined oyster shell powder. It has an adverse effect on the expansion ratio and/or rebound strength, as shown in Preparation Comparative Examples 1 to 10. [Table 1]

[Table 2]

The first EVA copolymer: Formosa Plastics olefin, model 7340M, VA 14%, MI _2.16 2.5 g/10min Formosa Plastics olefin, model 7350M, VA 18%, MI _2.16 2.5 g/10min Formosa Plastics olefin, model 7360M, VA 21% , MI _2.16 2.5 g/10min High VA content EVA copolymer: Formosa Plastics, model 7670S, VA 28%, MI _2.16 10 g/10min

In summary, the above-mentioned specific specifications of EVA copolymers, specific calcined shellfish shell powders, specific foaming additives, specific manufacturing processes or specific evaluation methods are only used to illustrate the antibacterial foaming composition of the present invention. The antibacterial foam material and its manufacturing method. However, those with ordinary knowledge in the technical field of the present invention should understand that, without departing from the spirit and scope of the present invention, other specifications of EVA copolymers, other shellfish shell calcined powders, other foaming additives, and other The manufacturing process or other evaluation methods can also be used for the antibacterial foaming composition, the antibacterial foaming material containing the same, and the manufacturing method thereof, and are not limited to the above. For example, without affecting the foaming and antibacterial properties, EVA copolymers or other shellfish shell calcined powders of other specifications or usage levels can also be used. For example, the first EVA copolymer can use Formosa olefin type 7350M (VA content 18%, MI _2.16 is 2.5 g/10 minutes), Formosa Plastics olefin model 7360M (VA content 21%, MI _2.16 is 2.5 g/10 minutes), and the second EVA copolymer can also use Formosa Plastics olefin Model 7880H (VA content 40%, MI _2.16 is 65 g/10 minutes).

It can be seen from the above embodiments that the antibacterial foaming composition of the present invention, the antibacterial foaming material containing the same, and the manufacturing method thereof have the advantage of using at least two EVA copolymers with different VA contents and adding a small amount of natural inorganic antibacterial materials. It not only effectively improves the foaming and elasticity of the antibacterial foaming material, but also gives it better antibacterial properties and dimensional stability. It can be used in various leisure sports products, such as shoe soles, insoles and yoga mats.

Although the present invention has been disclosed as above in several specific embodiments, various modifications, various changes and substitutions can be made to the foregoing disclosure, and it should be understood that, without departing from the spirit and scope of the present invention, certain circumstances will Some features of the embodiments of the present invention are adopted but other features are not used correspondingly. Therefore, the spirit of the present invention and the scope of the claims should not be limited to the above exemplary embodiments.

without

without

Claims (12)

An antibacterial foaming composition comprising: 100 parts by weight of a polymer, wherein the polymer contains at least 50 weight percent to 80 weight percent of a first ethylene vinyl acetate (EVA) copolymer [vinyl acetate (VA) content Less than 22%, the melt index (MI) _{2.16 is} less than 10 g/10 minutes] and one of 20 weight percent to 50 weight percent of the second EVA copolymer (VA content is equal to or greater than 28%, MI _2.16 is equal to or greater than 10 g/ 10 minutes); 4.5 parts by weight to 10 parts by weight of a natural inorganic antibacterial material, wherein the natural inorganic antibacterial material is shellfish shell calcined powder; and 3 parts by weight to 15 parts by weight of a foaming additive, wherein the foaming additive Contains a foaming agent, a bridging agent, a foaming aid and a bridging aid. The antibacterial foaming composition according to claim 1, wherein a difference between the VA content of the first EVA copolymer and the VA content of the second EVA copolymer is 7% to 26%. The antibacterial foaming composition according to claim 1, wherein the VA content of the first EVA copolymer is 14% to 21%, and the MI _2.16 is 2.5 g/10 minutes. The antibacterial foaming composition according to claim 1, wherein the VA content of the second EVA copolymer is 28% to 40%, and the MI _2.16 is 10 g/10 minutes to 65 g/10 minutes. The antibacterial foaming composition according to claim 1, wherein the shellfish shell calcined powder system is derived from a single shell shell and/or a bivalve shell, and the single shell shell and/or a bivalve shell are selected Since it is a group consisting of oysters, clams, clams, nine holes, peacock clams, sail shells, abalones, pearl shells, butterfly shells and scallops. The antibacterial foaming composition according to claim 1, wherein the antibacterial foaming composition comprises 6 parts by weight to 10 parts by weight of the natural inorganic antibacterial material. An antibacterial foaming material, including: The antibacterial foaming composition according to any one of claims 1 to 6, wherein the antibacterial foaming material has an inhibitory rate of not less than 99.0% against one of Escherichia coli and Staphylococcus aureus, and the antibacterial foaming material has a One expansion ratio is not less than 1.70. The antibacterial foam material according to claim 7, wherein the antibacterial foam material includes a sole, an insole and a yoga mat. An antibacterial foaming material manufacturing method, comprising: providing an antibacterial foaming composition, wherein the antibacterial foaming composition includes: 100 parts by weight of a polymer, wherein the polymer includes a first EVA copolymer [VA content less than 22%, MI _2.16 is less than 10 g/10 minutes] and a second EVA copolymer (VA content is equal to or greater than 28%, MI _2.16 is equal to or greater than 10 g/10 minutes), and the first EVA copolymer and the The weight ratio of the second EVA copolymer is 1:1 to 4:1; 4.5 parts by weight to 10 parts by weight of natural inorganic antibacterial material, wherein the natural inorganic antibacterial material is shellfish shell calcined powder; and 3 parts by weight to 15 parts by weight of a foaming additive, wherein the foaming additive includes a foaming agent, a bridging agent, a foaming aid, and a bridging aid; and the antimicrobial foaming composition undergoes a mixing process and a hair The foaming process is used to obtain the antibacterial foam material, wherein one of the antibacterial foam materials has a foaming ratio of not less than 1.70. The method for manufacturing an antibacterial foam material according to claim 9, wherein the VA content of the first EVA copolymer is 14% to 21%, and the MI _2.16 is 2.5 g/10 minutes. The method for manufacturing an antibacterial foam material according to claim 9, wherein the VA content of the second EVA copolymer is 28% to 40%, and the MI _2.16 is 10 g/10 minutes to 65 g/10 minutes. The method for producing an antibacterial foam material according to claim 9, wherein the antibacterial foam composition contains 6 parts by weight to 10 parts by weight of the natural inorganic antibacterial material.