JP2017046745A - Shoe having deodorant function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide shoes having a deodorant function capable of maintaining over an extended period, a direct deodorant effect to isovaleric acid which is a main component of odor of feet.SOLUTION: There are provided shoes having a deodorant function in which a glassy deodorizer 1 is carried on a member 2 constituting the shoes. The glassy deodorizer comprises alkali-alkaline earth-borosilicate glass containing a copper component, or alkali-alkaline earth-silicate glass containing a copper component, and has a function for decomposing a malodorous component by a catalytic action of the copper component held in glass.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a shoe having a deodorizing function.

  Legs are said to sweat much more than other parts of the body, and bacteria may easily grow on nutrients such as keratins that have fallen off, which may cause odors in shoes. This tendency is even stronger in shoes with poor ventilation, such as women's boots. The main component of this odor is isovaleric acid, which is a lower fatty acid. In addition to sweat, other body odors are included, and the odor generated at the entrance (shoe box) is referred to as shoe odor, foot odor or mold odor. Acetic acid, propionic acid, normal butyric acid, hydrogen sulfide, methyl mercaptan Etc.

  Therefore, various countermeasures against bad odor have been proposed conventionally. For example, Patent Document 1 describes spraying a deodorant containing propylene glycol, which is a deodorizing component, and a fragrance component, into the inside of a shoe. However, since such organic components are easily volatilized, it is often necessary to spray in order to maintain the deodorizing effect.

  Patent Document 2 describes that hollow particles containing a deodorant are held in an inner sole (insole) of a shoe to absorb bad odor inside the shoe. Further, Patent Document 3 describes that a soluble glass powder that elutes silver or copper ions when in contact with moisture adheres to the leather shoe skin and absorbs malodor inside the shoe.

These Patent Documents 2 and 3 both use a chemical that exhibits a deodorizing effect by a chemical adsorption reaction such as neutralization with a malodorous component, or an adsorbent that exhibits a deodorizing effect by physically adsorbing the malodorous component. It is a thing. However, both chemical adsorption and physical adsorption depend on the surface exposure amount of the adsorbent. For this reason, the persistence of the deodorizing effect depends on the exposure amount, and the deodorization limit is determined by the exposure amount. Therefore, there is a problem that the deodorizing effect by chemical adsorption reaction or physical adsorption is poor in sustainability. Further, since the vitreous deodorant of Patent Document 3 is a fine powder having a particle size of D ₉₆ = 40 μm or less, the total silver content is also small, and the deodorizing effect gradually decreases as the release of silver ions proceeds. Inevitable to do.

  Further, silver ions have an antibacterial effect, and thus have an effect of preventing malodors produced by bacteria, but there is a problem that there is no direct deodorizing effect on isovaleric acid which is a main component of foot odor.

JP 2003-24422 A JP 2001-299409 A JP-A-3-7201

  Therefore, the object of the present invention is to solve the above-mentioned conventional problems, and to maintain a direct deodorizing effect for foot odors such as isovaleric acid, hydrogen sulfide, methyl mercaptan, etc. over a long period of time. Is to provide shoes with.

  The present invention made to solve the above problems is a shoe having a deodorizing function in which a vitreous deodorant is supported on a member constituting the shoe, and the vitreous deodorant contains a copper component. Containing alkali-alkaline earth-borosilicate glass or copper-containing alkali-alkaline earth-silicate glass, with the function of decomposing malodorous components by the catalytic action of the copper component held in the glass It is characterized by having.

As in claim 2, the content of the glassy deodorant is preferably 0.1 to 15% by mass, and as in claim 3, the glassy deodorant has a D _{96 of} 100 μm or less. A powder is preferred.

  Further, as in claim 4, the member constituting the shoe can be any one of an inner sole, an insole, and a lining of leather shoes. Further, as in claim 5, the member constituting the shoe is a main body of a rubber shoe. It can also be.

  The shoe having the deodorizing function of the present invention is a glassy deodorant comprising an alkali-alkaline earth-borosilicate glass containing a copper component or an alkali-alkaline earth-silicate glass containing a copper component. The malodorous component is decomposed by the catalytic action of the copper component that is carried on the member constituting the shoe and held in the glass.

  While various deodorants using soluble glass have been developed, conventionally, a “glass agent showing a deodorizing effect by catalytic action” has not been known. As a result of many years of research, the present inventors have determined that the copper component contained in the glass having the above composition functions as a catalyst, promotes the decomposition reaction of sulfur-based malodorous substances, and forms sulfur-based compounds such as hydrogen sulfide and methyl mercaptan. The present inventors have found a new finding that it has a deodorizing effect on malodorous substances. And the copper component contained in the glass of the said composition also has a direct deodorizing effect with respect to isovaleric acid which is a main component of foot odor.

  Since the present invention has a mechanism for promoting the decomposition reaction of malodorous substances using the copper component contained in the glass as a catalyst in this way, the deodorization compared with the conventional techniques using chemical adsorption and physical adsorption. A capacity | capacitance can be increased and the deodorizing effect can be exhibited stably over a long period of time. That is, both conventional chemical adsorption and physical adsorption depend on the surface exposure amount of the adsorbent, and the deodorization limit is determined by the exposure amount. However, in the present invention, since the catalytic reaction is used, the exposure amount is small. Even so, a large total deodorizing amount can be obtained. For this reason, if attention is paid only to the deodorizing amount, the addition amount of the glassy deodorant may be added in a small amount, but in order to add the deodorizing speed, it is preferable to contain 0.1 to 15% by mass as described above. .

  The vitreous deodorant used in the present invention can exhibit an excellent deodorizing effect particularly with respect to methyl mercaptan. That is, this glassy deodorant catalytically oxidatively decomposes methyl mercaptan to produce dimeric dimethyl disulfide. At this time, radicals are generated and oxidatively decomposed. Similarly, similar oxidative decomposition is possible for other gases. This point is also referred to in examples described later. However, the odor that can be deodorized is not limited to sulfur-based odor substances. Specific examples include lower fatty acids, acetic acid known as body odor (sweat, foot odor), isovaleric acid, propionic acid, normal butyric acid, normal valeric acid, and medium chain fatty acid caproic acid Also, enanthic acid and trans-2-nonenal, known as an aging odor, can be deodorized. In general, those having 2 to 4 carbon atoms are referred to as short chain fatty acids (lower fatty acids), but in this specification, acetic acid having 1 carbon atom and 5 valeric acids are also treated as lower fatty acids.

It is a top view which shows the inner sole of 1st Embodiment. It is sectional drawing which shows the state which kneaded the vitreous deodorant. It is sectional drawing which shows the state which adhere | attached the glassy deodorant on the surface. It is typical sectional drawing which shows 2nd Embodiment. 10 is a graph showing the results of Example C.

Embodiments of the present invention will be described below.
In the present invention, a vitreous deodorant is carried on the member constituting the shoe, and the function of decomposing the malodorous component is exhibited by the catalytic action of the copper component held in the glass. As the member 2 constituting the shoe, in addition to the inner sole (insole) of leather shoes as shown in FIG. Of the members that make up the shoe, even if a glassy deodorant is carried on the outer outer sole (outer sole), heel, etc., the effect of directly deodorizing the foot odor is small, so the inside of the shoe is made up. It is preferable to select a member. However, since the outer member also exerts a deodorizing effect in the state of being housed in a clog box, a glassy deodorant may be carried on the outer member.

When the member 2 constituting the shoe is a resin or rubber, it is preferable from the viewpoint of durability that the vitreous deodorant 1 powder is directly kneaded into the member 2 as shown in FIG. However, when the member 2 constituting the shoe is leather, the vitreous deodorant 1 is attached to the surface of the member 2 by the binder 3 as shown in FIG. In this case, although it is inferior to FIG. 2 in terms of durability, it is superior to FIG. 2 in that the area where the vitreous deodorant 1 is in contact with air becomes larger. The kind of binder 3 is not specifically limited, For example, an acrylic type, an epoxy type, and a urethane type binder can be used. In this case, the amount of the glassy deodorant 1 attached is preferably 5 to 500 mg / m ² .

  In the case of a rubber boot, as shown in FIG. 2, the vitreous deodorant 1 can be directly kneaded into the rubber. In this case, it is preferable that the concentration of the inner glassy deodorant 1 is higher than that of the outer side. Also in the case of boots, as in the case of leather shoes, it is of course possible to use an inner sole (insole) or lining (backing) containing the vitreous deodorant 1. In any case, the content of the vitreous deodorant 1 in the member 1 is preferably 0.1 to 15% by mass. If it is less than this range, the deodorizing effect is insufficient. In the present invention, since the vitreous deodorant 1 exhibits a deodorizing function due to a catalytic effect, the deodorizing amount does not depend on the exposed amount of the vitreous deodorant 1. For this reason, in the long term, a small amount may be exposed on the surface, and even if the content exceeds 15%, an increase in deodorizing amount cannot be expected. A preferable content rate is 0.1-10 mass%.

  Sponge-like polyurethane may be used for the inner sole, and the vitreous deodorant 1 is dispersed in the sponge, so that the vitreous deodorant 1 does not come out of the inside of the sponge or the outer surface so that the vitreous deodorant 1 does not come out. Since the gas permeates through the sponge, the vitreous deodorant 1 directly exerts a deodorizing effect. Recently, polyurethane gel-like insoles are increasing. However, since urethane and nylon also have water absorption properties, deodorization can be effectively achieved by incorporating the vitreous deodorant 1 on the surface thereof.

The glassy deodorant 1 is composed of an alkali-alkaline earth-borosilicate glass containing a copper component or an alkali-alkaline earth-silicate glass containing a copper component, and in the case of attachment, D ₉₆ = 100 μm. Hereinafter, it is desirable that the powder is D ₉₆ = 40 μm or less. Here, D ₉₆ means a particle size at which the integral value when the particle size distribution measurement is performed and the cumulative distribution is 96%. Terms of the D ₉₆ is more than 100μm the specific surface area of the vitreous deodorant 1 reduces the catalytic effect decreases, uniform dispersion is difficult of. When the particle size is less than 1 μm, the efficiency of pulverizing and classifying glass is extremely lowered, which is not preferable in production. In the case of kneading, it is preferable that D ₉₆ = 40 μm or less, and practically about 1 to 25 μm is easy to handle. Such a glassy deodorant 1 can be manufactured by a method in which a blended raw material is melted and rapidly cooled to obtain a pre-molded body, and then pulverized. For the pulverization, a generally known pulverizer (for example, a ball mill, a bead mill, a jet mill, a CF mill, etc.) can be used, and it may be dry or wet.

  The composition of the vitreous deodorant used in the present invention will be described below.

(Alkali-alkaline earth-borosilicate glass)
The alkali-alkaline earth-borosilicate glass containing the above-described copper component is SiO ₂ : 46 to 70 mol%, B ₂ O ₃ + R ₂ O (R: alkali metal): 15 to 50 mol%, R′O. (R ′: alkaline earth metal): 0 to 10 mol%, Al ₂ O ₃ : 0 to 6%, CuO: 0.01 to 23 mol%. _Here, B ₂ O 3: _{5~20 mol%,} R 2 O: can be 10 to 30 mol%.

Preferred compositions the vitreous deodorant _1, SiO 2: 51~63 _{mol%, B 2 O 3 + R} 2 O: 21~39 mol%, R'O: 2 to 7 _mol%, Al _{2 O} 3: 0 to 5.5%, CuO: 1 to 13 mol%. _Here, B ₂ O 3: _{8~17 mol%,} R 2 O: can be 13 to 22 mol%.

The most preferred composition of this vitreous deodorant _1, SiO 2: 53-62 _{mol%, B} 2 O 3: _{10~17 mol%,} R 2 O: _13~19 mol%, R'O: 3~ 6 _{mol%, Al 2 O 3: 0~4.5} %, CuO: 4~13 are mole%. Below, each glass composition is demonstrated in detail.

(SiO ₂ )
SiO ₂ is a main component that forms the structural skeleton of glass, and its content is 46 to 70 mol%, preferably 51 to 63 mol%, and more preferably 53 to 62 mol%. If it is less than 46 mol%, the chemical durability of the glass becomes insufficient, and the glass tends to devitrify, which is not preferable. Furthermore, if it is less than 46 mol%, the water resistance of the glass becomes insufficient, and copper ions are more likely to elute in the presence of moisture (including moisture in the atmosphere). Since the deodorizing effect by the sulfurization reaction which occurs by this becomes strong, it is not preferable. If it exceeds 70 mol%, the melting point increases, which makes glass melting difficult and also causes an increase in viscosity.

(B ₂ O ₃ )
B ₂ O ₃ is a component that improves the solubility and clarity of the glass, and in a specific composition, it also becomes a component that forms the structural skeleton of the glass. B ₂ O ₃ greatly affects the stability of the glass depending on its content, and in the present invention, the meaning as a flux of glass is large. Its _content, in consideration of the volatilization amount of B 2 _{O 3,} 5 to 20 mol%, preferably 8 to 17 mol%, further preferably 10 to 17 mol%. When it exceeds 20 mol%, B ₂ O ₃ is not preferred because it tends to volatilize in the melting process and the composition control becomes difficult.

(R ₂ O)
R ₂ O (R = Li, Na, K) breaks the bond between Si and O in the glass structure skeleton to form non-crosslinked oxygen, resulting in a decrease in glass viscosity, moldability and solubility. And a flux similar to B ₂ O ₃ . The content of one or more of R ₂ O is 10 to 30 mol% in total, preferably 13 to 22 mol%, more preferably 13 to 19 mol%, considering the content ratio with multiple components. And When it exceeds 30 mol%, the chemical durability of the glass becomes insufficient. Specifically, a whitening phenomenon called bloom is caused by a reaction between the glass agent and moisture in the atmosphere. The occurrence of bloom is undesirable because it reduces the contact area with malodorous gas.

(B ₂ O ₃ + R ₂ O)
As mentioned above, both B ₂ O ₃ and R ₂ O are used as fluxing agents. The range in which the total content of B ₂ O ₃ and R ₂ O is 15 to 50 mol%, preferably 21 to 39 mol%, is a region that safely exhibits the deodorizing effect. If it is less than 15 mol%, the meltability of the glass becomes insufficient, and devitrification tends to occur during molding, which is not preferable. If it exceeds 50 mol%, the water resistance of the glass becomes insufficient, and copper ions are likely to elute in the presence of moisture (including moisture in the atmosphere), resulting in ion elution rather than deodorizing effect due to catalysis. Since the deodorizing effect by a sulfurization reaction becomes strong, it is not preferable. On the other hand, if it exceeds 50 mol%, phase separation is likely to occur during melting, and the deodorizing effect of the glass agent becomes insufficient accordingly.

(R'O)
R′O (R ′ = Mg, Ca, Sr, Ba) is a component that improves the chemical durability of the glass. The content is one or two or more of R′O (R ′ = Mg, Ca, Sr, Ba) in a total of 0 to 10 mol%, preferably 2 to 7 mol%, more preferably 3 to 6 mol. %. If it exceeds 10 mol%, the viscosity at the time of melting increases and the glass tends to be devitrified, which is not preferable. Note that R′O is not an essential component in the deodorant of the invention, and its content may be 0 mol%, but is preferably 2 mol% or more.

(Al ₂ O ₃ )
Al ₂ O ₃ is a component that improves the chemical durability of the glass and affects the crystal structure stability. Further, Al ₂ O ₃ functions to suppress the phase separation of the glass and increase the homogeneity of the glass agent. Since the viscosity and the addition may affect the redox state of copper ions in the glass, its content is 6 mol% or less, preferably 5.5 mol% or less, most preferably 4 .5 mol% or less.

(CuO)
CuO functions as a catalyst, accelerates the decomposition reaction of the sulfurous malodorous substance, and exhibits the deodorizing effect of the sulfurous malodorous substance. The content is 0.01 to 23 mol%, preferably 1 to 13 mol%, more preferably 4 to 13 mol%. If it exceeds 23 mol%, undissolved material tends to remain, and metal copper tends to precipitate during rapid cooling or processing, which is not preferable. Since the glass is discolored with the deposition of metallic copper, it is not suitable for applications where discoloration of the glass is a problem. Moreover, when it precipitates as metallic copper, poisoning will advance. On the other hand, if CuO is included as a glass component, poisoning does not proceed easily, and the catalytic function can be stably exhibited over a long period of time.

(Other trace components)
In addition to the above components, ZnO, SrO, BaO, TiO ₂ , ZrO ₂ , Nb ₂ O ₅ , P ₂ O ₅ , Cs ₂ O, Rb ₂ O, TeO ₂ , BeO, GeO ₂ , Bi ₂ can be used as trace components. O ₃ , La ₂ O ₃ , Y ₂ O ₃ , WO ₃ , MoO ₃ , Fe ₂ O ₃ or the like can also be included. Furthermore, F, Cl, SO ₃ , Sb ₂ O ₃ , SnO ₂ , Ce, or the like may be added as a clarifier.

(Alkali-alkaline earth-silicate glass)
In the present invention, an alkali-alkaline earth-silicate glass containing a copper component can also be used as the vitreous deodorant 1. This _glass, SiO 2: 50-70 _mol%, R 2 O: _10~33 mol%, R'O: 0 to 15 _{mol%, Al 2 O 3: 0~6} %, CuO: 0.01~23 It is a glass containing mol%.

The preferred composition of the vitreous deodorant _1, SiO 2: 55 to 70 _mol%, R 2 O: _12~24 mol%, R'O: 2 to 10 _{mol%, Al 2 O 3: 0~5} . 5%, CuO: 1 to 20 mol%. The most preferred composition of this vitreous deodorant _1, SiO 2: 55 to 65 _mol%, R 2 O: _12~20 mol%, R'O: 3 to 7 _mol%, Al ₂ O 3: _0~ 5%, CuO: 4 to 13 mol%.

Unlike the alkali-alkaline earth-borosilicate glass described above, the alkali-alkaline earth-silicate glass does not contain B ₂ O ₃ , so the numerical range of the composition is slightly changed. Is the same as alkali-alkaline earth-borosilicate glass.

  The shoe having the deodorizing function of the present invention has a function of decomposing malodorous components such as isovaleric acid, hydrogen sulfide, methyl mercaptan by the catalytic action of the copper component held in the glass of the vitreous deodorant 1. It is what you have. Unlike the soluble glass, the copper component decomposes the malodorous component by the catalytic action while being retained in the glass, so that the deodorizing effect is maintained over a long period of time and the durability is excellent.

  In the above-described embodiment, the glassy deodorant 1 is used alone, but it can also be used in combination with inorganic deodorants such as general-purpose silica gel, zeolite, activated carbon, clay mineral, photocatalyst (titanium dioxide). . Moreover, it can also be used with the phosphate glass containing the silver of patent document 1. Such combined use makes it possible to aim at effects such as speeding up the deodorization speed, expanding target gas, and reducing costs.

  Examples of the present invention are shown below. In the table, n.d. means not detected.

  Glass raw materials were prepared so as to have the composition shown in Table 1, and melted, molded, and pulverized by a melt quenching method to produce a glassy deodorant. A deodorant inner sole was produced under the conditions shown in Table 2 for the obtained glassy deodorant, and this inner sole was sealed in a 1 L Tedlar bag together with a bad odor, and a deodorizing effect confirmation test was performed. The inner sole was 25 cm in size.

  In the case of attaching to pork skin, a glassy deodorant was spray-applied to pork leather using a urethane binder, and dried and attached. Spray is only on one side. In the case of blending, a vitreous deodorant was blended with polyurethane using a polyurethane foam injection molding machine. In addition, a glassy deodorant was blended into the ethylene / vinyl acetate copolymer using a mechanical press-molded EVA insole machine.

(Example A: Deodorizing effect against various bad odors)
The inner soles of Experimental Examples 1 to 20 in Table 2 were sealed in a 1 L Tedlar bag together with malodor components, and the malodor concentration in the bag with the elapsed time was measured at room temperature. Hydrogen sulfide and methyl mercaptan were measured with a gas chromatograph, and acetic acid, propionic acid, normal butyric acid and isovaleric acid were measured with a gas detector tube. As a comparison, a vitreous deodorant composed of the soluble glasses 1 to 3 shown in Table 3 was prepared and pulverized to D ₉₆ = 40 μm or less, and 5 mg / m ² in pig leather by the same means as in the experimental examples. So attached. Moreover, about the meltable glass 1, it mix | blended with the polyurethane by the same means. In addition, Experimental example 3 using the glass which does not contain a copper component corresponds to a blank. As a result, as shown in Table 4, it was confirmed that any offensive odors showed a deodorizing effect. Further, it was confirmed that the soluble glass does not show a deodorizing effect on lower fatty acids.

(Example B: Sustainability to soluble glass)
The inner soles of Examples 1, 2, 5, and 6 in Table 2 were sealed in a 1 L Tedlar bag together with malodor components, and the malodor concentration in the bag with the elapsed time was measured by a gas chromatograph at room temperature. As a comparison, a glassy deodorant composed of the soluble glasses 2 to 4 shown in Table 3 was prepared, pulverized to D ₉₆ = 40 μm or less, and 5 mg / m ² in pig leather by the same means as in the experimental examples. So attached. As a result, as shown in Table 5, it was confirmed that the soluble glass reached the deodorization limit, whereas the glass agent of the present invention had a large total deodorization amount. While the deodorizing limit of the soluble glass is determined according to the exposure amount, the examples show a catalytic action. Therefore, the total amount of deodorization can be expected if even a small amount is exposed. However, the glass changes continuously depending on the composition, and the effect also changes continuously from the catalytic reaction to the adsorption reaction of the soluble glass. Since Experimental Example 5 had a composition with reduced durability (because it was a composition approaching soluble glass), it was confirmed that the tendency of the adsorption reaction was the same as that of soluble glass and reached the deodorization limit.

(Example C: Basic characteristics and decomposition action of glassy deodorant)
D ₅₀ = 4.2 μm ground glass 1g consisting of composition number 6 in Table 1 and methyl mercaptan were sealed in a 5 L Tedlar bag, and methyl mercaptan and dimethyl disulfide in the bag over time were measured with a gas chromatograph at room temperature. did. Moreover, the same operation was performed as a blank, without a glassy deodorant. In addition, it was confirmed in advance by a gas chromatograph mass spectrometer that the gas components present in the bag were only these two components. As a result, as shown in FIG. 5, it was confirmed that the vitreous deodorant of the present invention has an action of decomposing methyl mercaptan and generating dimethyl disulfide. The basic characteristics of the glassy deodorant are naturally maintained even when kneaded into the inner sole or the like.

(Example D: Basic characteristics of glassy deodorant / radical generation)
D ₅₀ = 0.1 mol·L ⁻¹ phosphate buffer solution of pH = 7.4 with respect to 200 mg of the glass composed of the soluble glass 1 of composition numbers 6 and 9 and table 3 of Table 1 ground to 5.0 μm 200 μL was added. Thereto, 10 μL of 9.2 mol·L ⁻¹ DMPO (manufactured by LABOTEC, LM-2110) was added and shaken. Shake was stopped 10 seconds, 1 minute, and 5 minutes after DMPO addition, and only the solution was collected with a hematocrit tube, and ESR (manufactured by JEOL Ltd., FR-30, X band) measurement was performed. Moreover, the thing except glass was made into the blank. All were performed at room temperature under fluorescent light. This technique corresponds to the spin trap method, which is a general technique for measuring radicals, and spin adducts are generated when DMPO captures radicals. This product (DMPO-OH) was detected by ESR. The unit of the detected value is a peak area value ratio (area single / area manganese, S / M) with respect to the reference material Mn ²⁺ . The results are shown in Table 6. The composition No. 6 glass was confirmed to produce DMPO-OH, whereas the composition No. 9 and the soluble glass 1 only showed a background value as in the blank. It was confirmed that the vitreous deodorant of the present invention has a high possibility of generating radicals.

(Example E: Basic characteristics of glassy deodorant and suppression of catalyst deterioration)
D ₅₀ = 4.2 μm crushed glass of composition number 6 in Table 2 0.1 g and CuO reagent (average particle size 4 μm) 0.1 g each was sealed in a 1 L Tedlar bag at room temperature with time The methyl mercaptan concentration in the bag was measured with a gas chromatograph. The initial concentration of methyl mercaptan was 55 ppm and repeated up to 10 times. Moreover, the same operation was performed without glass as a blank. As a result, as shown in Table 7, the deodorizing effect of the CuO reagent is reduced with repetition. This is a generally known catalyst deterioration (sulfur adsorption) of CuO. On the other hand, it was confirmed that the glass maintained the deodorizing effect and was highly sustainable. Although elucidation of this mechanism remains, it has been confirmed that catalyst degradation is suppressed by vitrification. When the glass surface at this time was analyzed by XPS (manufactured by ULVAC-PHI Co., Ltd., PHI 5000 VersaProbe), as shown in Table 8, it was confirmed that there was certainly no sulfur adsorption after deodorization. The basic characteristics of the glassy deodorant are naturally maintained even when kneaded into the inner sole or the like.

DESCRIPTION OF SYMBOLS 1 Glassy deodorant 2 Member which comprises shoes 3 Binder

Claims (5)

A shoe having a deodorizing function in which a glassy deodorant is supported on a member constituting the shoe,
This glassy deodorant consists of an alkali-alkaline earth-borosilicate glass containing a copper component or an alkali-alkaline earth-silicate glass containing a copper component,
A shoe having a deodorizing function characterized by having a function of decomposing malodorous components by the catalytic action of a copper component held in glass.   The shoe having a deodorizing function according to claim 1, wherein the content of the glassy deodorant is 0.1 to 15% by mass. The shoe having a deodorizing function according to claim 1 or 2, wherein the vitreous deodorant is a powder of D ₉₆ = 100 µm or less.   4. The shoe having a deodorizing function according to claim 1, wherein the member constituting the shoe is any one of an inner sole, an insole, and a lining of leather shoes.   4. The shoe having a deodorizing function according to claim 1, wherein the member constituting the shoe is a main body of a rubber shoe.