WO2007141978A1 - 混合抗菌性ガラス - Google Patents
混合抗菌性ガラス Download PDFInfo
- Publication number
- WO2007141978A1 WO2007141978A1 PCT/JP2007/059429 JP2007059429W WO2007141978A1 WO 2007141978 A1 WO2007141978 A1 WO 2007141978A1 JP 2007059429 W JP2007059429 W JP 2007059429W WO 2007141978 A1 WO2007141978 A1 WO 2007141978A1
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- WO
- WIPO (PCT)
- Prior art keywords
- antibacterial glass
- glass
- antibacterial
- mixed
- colored
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/02—Compositions for glass with special properties for coloured glass
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
- C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/685—Devices for dosing the additives
- C02F1/688—Devices in which the water progressively dissolves a solid compound
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2204/00—Glasses, glazes or enamels with special properties
- C03C2204/02—Antibacterial glass, glaze or enamel
Definitions
- the present invention relates to a mixed antibacterial glass, and more particularly to a mixed antibacterial glass containing a mixture of a colored antibacterial glass added with an inorganic colorant and a non-antibacterial glass.
- an antibacterial resin composition a synthetic resin molded article containing borosilicate antibacterial glass that elutes silver ions in the resin is disclosed (for example, see Patent Document 1).
- strong synthetic resin moldings are one or two of SiO, B 2 O, and P 2 O.
- An antibacterial resin composition containing an antibacterial glass having an average particle size of 20 ⁇ m or less in a synthetic resin is disclosed.
- the antibacterial resin composition has an antibacterial particle size of 10 to: L000 ⁇ m, and a thickness of 0.
- a resin composition containing 1 to 20 m of flaky glass is disclosed (for example, see Patent Document 2).
- composition of the flaky glass is as follows:
- antibacterial resin compositions that exemplify electrical products such as dishwashers, dish dryers, refrigerators, washing machines, and pots have been proposed as antibacterial glass applications (for example, Patent Documents 4 to 4). 6).
- the maximum diameter (tl) of the antibacterial glass is a value within the range of 1 to 50 mni.
- the elution amount of silver ions is set to a value within the range of 0.5 to L00 mgZ (g'24Hrs), and the antibacterial glass is brought into direct contact with water to produce water containing silver ions.
- An antibacterial glass for applying a predetermined antibacterial treatment to an antibacterial object after washing and a method for producing the same are disclosed.
- Patent Document 1 JP-A-1-313531 (Claims)
- Patent Document 2 Japanese Patent Laid-Open No. 7-25635 (Claims)
- Patent Document 3 JP-A-10-72530 (Claims)
- Patent Document 4 Japanese Patent Laid-Open No. 2000-3238 (Claims)
- Patent Document 5 Japanese Unexamined Patent Publication No. 2000-3239 (Claims)
- Patent Document 6 WO 2005Z087675 Publication (Claims)
- Patent Document 7 Japanese Patent Publication No. 7-63701 (Claims)
- the antibacterial resin composition disclosed in Patent Documents:! To 6 is composed of an antibacterial glass mixed in the resin, the antibacterial glass is substantially In many cases, it was colorless and transparent, and the contained silver reacted with chlorine ions or the like to cause discoloration or opacification.
- the average particle size of the fungal glass is preferably 20 m or less in order to mix it uniformly in the resin.
- the antibacterial glass has a predetermined size. Although it is made of glass flakes, there was a manufacturing problem in that it was necessary to use a classifier as a manufacturing device and limit these values to a predetermined range.
- the antibacterial glass and glass water treatment agents disclosed in Patent Documents 6 and 7 have a relatively long maximum diameter, but use electric water such as a dishwasher, dish dryer, or washing machine. When it was used for the above, there was a problem that the effect of preventing discoloration was inferior or it was easy to crush.
- the antibacterial glasses disclosed in Patent Documents 1 to 7 are all substantially colorless and transparent, and when they are provided with a covering member and formed into a cartridge, their presence is identified from the outside. The problem of not being able to be seen was seen. In other words, when cartridges are used for electrical products, it is difficult to determine when to replenish or replace antibacterial glass. There was also a problem.
- the antibacterial glasses disclosed in Patent Documents 1 to 7 are all water-soluble, and, for example, when used as antibacterial glass for washing machines, they dissolve and decrease in weight.
- the antibacterial glass contained in the predetermined container could not be held in a state where it was submerged in the washing machine, or the outer shape of the predetermined container could not be maintained.
- the present inventors have found that a colored antibacterial glass to which a predetermined amount of an inorganic colorant is added, a non-antibacterial glass that is non-soluble and has no weight change, Even when used as a mixed antibacterial glass for washing machines, the weight change is small and it is easy to use, while maintaining the initial appearance and distinguishability.
- the present invention has been completed by finding that a predetermined amount of silver ions can be repeatedly released. That is, the present invention provides a mixed antibacterial glass that provides excellent discoloration prevention effect and distinctiveness while maintaining the release amount of silver ions within a predetermined range while being excellent in usability with a small weight change force S during use. The purpose is to provide.
- a mixed antibacterial glass comprising a colored antibacterial glass that exhibits an antibacterial effect by releasing silver ions and a non-antibacterial glass, wherein the maximum diameter of the colored antibacterial glass is (tl) is a value within the range of 3 to 30 mm, and contains an inorganic colorant as a blending component, and the added amount of the inorganic colorant is 0.001 to 0 with respect to the total amount.
- a mixed antibacterial glass having a value within the range of 5% by weight is provided to solve the above-mentioned problems.
- the mixed antibacterial glass of the present invention by including the colored antibacterial glass to which a predetermined amount of an inorganic colorant is added, the initial appearance is exhibited while exhibiting a predetermined antibacterial effect over a long period of time. And maintain discriminability.
- the function of the inorganic colorant can effectively prevent the discoloration of the resin derived from the silver ions, and can easily identify the presence of the resin from the outside. It is possible to appropriately determine the replenishment time and replacement time of the glass.
- the non-antibacterial glass can function as a weight adjusting member, and the weight change force S during use is small.
- the washing machine It can be held as it is in the water, or the outer shape of a predetermined container can be held as it is.
- the colored antibacterial glass has a flat plate shape, and the thickness (t2) of the colored antibacterial glass is set to a value within the range of 1 to 8 mm. It is preferable.
- the inorganic colorant contains a cobalt oxide, copper oxide, chromium oxide, nickel oxide, manganese oxide, neodymium oxide, elpium oxide, and oxide.
- C1 / C2 when at least one selected compound and the addition amount of inorganic colorant is C1 and the addition amount of acid silver contained is C2 It is preferable to make the ratio represented by the value within the range of 0.01-3.
- a specific compound such as cobalt oxide as the inorganic colorant it is possible to obtain excellent color developability with a relatively small amount of addition in the colored antibacterial glass, and thus the entire mixed antibacterial glass. Therefore, the amount of silver ions eluted is less affected, and a predetermined antibacterial effect can be exhibited for a certain period, while the initial appearance and distinguishability can be maintained over a long period of time.
- the predetermined antibacterial effect can be exerted without further suppression. Appearance and distinguishability can be maintained.
- the elution amount of silver in the colored antibacterial glass is set to a value within the range of 0.01 to 1.0 mg / (g '24Hrs). It is preferable. If it is the elution amount of such silver ions, mixed antibacterial glass together with non-antibacterial glass Even when configured, the initial appearance and distinguishability can be maintained while exhibiting a predetermined antibacterial effect for a longer period of time.
- the non-antibacterial glass contains soda glass as a main component.
- Such a non-antibacterial glass is equivalent to the specific gravity of the colored antibacterial glass and is powerful and inexpensive, so that the mixed antibacterial glass can be produced stably and economically.
- the maximum diameter (t3) of the non-antibacterial glass is set to a value in the range of 3 to 30 mm.
- Such a non-antibacterial glass is substantially equal to the maximum diameter (U) of the colored antibacterial glass, so that it is easily and uniformly mixed with the colored antibacterial glass. Can be difficult.
- the amount of non-antibacterial glass added may be set to a value within the range of 10 to 3000 parts by weight with respect to 100 parts by weight of the antibacterial glass. It is preferable.
- the predetermined antibacterial property as a mixed antibacterial glass can be exhibited, and the weight of the entire mixed antibacterial glass can be easily controlled. .
- the mixed antibacterial glass of the present invention when washing a cloth product using a washing machine, the cloth product is put into a washing tub of the washing machine and has a predetermined antibacterial property against the cloth product and the washing tub.
- the antibacterial glass is put into a bath tub filled with bath water and floated on the bath water to have a predetermined antibacterial property against the bath water and the tub. It is preferable that the mixed antibacterial glass has a shape-retaining member and the periphery is further covered with a water-permeable member.
- the mixed antibacterial glass of the present invention is configured, the mixed antibacterial glass is provided in a sanitary ware and imparts a predetermined antibacterial property to the sanitary ware. It is preferable that it is housed in a container with a path.
- FIG. 1] (a) to (f) are diagrams for explaining the shape of a colored antibacterial glass.
- FIG. 2 is a diagram for explaining the relationship between the maximum diameter (tl) of colored antibacterial glass contained in the mixed antibacterial glass and the residual rate.
- FIG. 4 is a diagram provided to explain the relationship between the amount of cobalt oxide added and color developability.
- FIG. 5 is a diagram for explaining the relationship between the addition amount of cobalt oxide and copper oxide and the elution amount of silver ions.
- FIG. 6 (a) to (b) are diagrams for explaining the formation of a cartridge of mixed antibacterial glass.
- FIG. 8] (a) to (b) are diagrams for explaining the usage of the mixed antibacterial glass for washing.
- FIG. 9 (a) to (b) are diagrams for explaining the usage mode of the mixed antibacterial glass for bathtubs.
- FIG. 10 (a) to (b) are diagrams for explaining the usage of the mixed antibacterial glass for sanitary ware.
- FIG. 11] (a) to (b) are diagrams for explaining a method for producing a mixed antibacterial glass (part 1).
- FIG. 12 is a diagram provided for explaining another method for producing mixed antibacterial glass.
- FIG. 13 is a view showing an example of a washing machine to which the mixed antibacterial glass is applied.
- FIG. 14] (a) to (! D) are diagrams for explaining the anti-discoloration effect of four types of mixed antibacterial glasses (No 1, 2, 3, 4).
- the mixed antibacterial glass of the present invention is a mixed antibacterial glass including a colored antibacterial glass that exhibits antibacterial effects by releasing silver ions, and a non-antibacterial glass.
- the maximum diameter (tl) of the colored antibacterial glass is set to a value within the range of 3 to 30 mm, and it contains an inorganic colorant as a blending component, and the added amount of the inorganic colorant is relative to the total amount.
- the mixed antibacterial glass has a value within the range of 0.001 to 0.5% by weight.
- the shape of the colored antibacterial glass is not particularly limited, but as shown in FIGS. 1 (a) to (f), rectangular shape, polygonal shape, disc shape, elliptical shape, irregular shape, perforated shape, etc. It is preferable to have a flat plate shape.
- the colored antibacterial glass is made into a flat plate shape such as a rectangular shape or a disc shape, so that it is swept away by 7 pressures even when it is placed at a predetermined location and brought into direct contact with water. This is because it is possible to effectively prevent outflow from a predetermined location.
- the colored antibacterial glass is rectangular or the like, the colored antibacterial glass will aggregate even if it is adjacent to it during manufacture or use. This is because it becomes easier to control the shape and environmental conditions when using it.
- the chamfer is chamfered along the sides constituting the colored antibacterial glass.
- the maximum diameter (tl) of the colored antibacterial glass is set to a value within a range of 3 to 30 mm.
- the maximum diameter (tl) of the colored antibacterial glass is, for example, the maximum length when an arbitrary line is drawn in the shape of the colored antibacterial glass, as shown in FIGS. 1 (a) to (f). This means
- the maximum diameter of the colored antibacterial glass it is more preferable to set the maximum diameter of the colored antibacterial glass to a value within the range of 4 to 25 mm, and it is even more preferable to set the value within the range of 5 to 15 mm.
- the maximum diameter (tl) of the colored antibacterial glass is the maximum diameter in the plane direction when the colored antibacterial glass is, for example, flat, and the diameter of the sphere when it is spherical. It becomes.
- the thickness (t2) of the colored antibacterial glass is preferably set to a value in the range of 0, 1 to 10 ⁇ .
- the thickness of the colored antibacterial glass is less than 0.1 mm, it becomes difficult to release silver ions of a predetermined concentration, handling becomes difficult, and stable. This is because it may be difficult to manufacture automatically. Meanwhile, hard wearing This is because if the thickness of the color antibacterial glass exceeds 10 mm, it will be difficult to handle and it will be difficult to manufacture stably.
- the thickness of the colored antibacterial glass is set to a value within the range of 1 to 8 mm. Are more preferable.
- the maximum diameter (tl) and thickness (t2) of the colored antibacterial glass described above can be easily measured using, for example, an optical micrograph or a caliper.
- FIG. 2 shows the relationship between the maximum diameter (tl) in the planar direction of the colored antibacterial glass and the residual rate when the colored antibacterial glass is used.
- the horizontal axis of FIG. 2 shows the maximum diameter (mm) in the planar direction of the colored antibacterial glass in logarithm, and the vertical axis shows the coloring in the examples described later when the colored antibacterial glass of each particle size is used.
- the residual ratio (%) measured according to the method for measuring the residual ratio of antibacterial glass is shown.
- the residual rate is relatively high, that is, 50% or more. It is understood that it can withstand long-term use.
- the colored antibacterial glass according to the present invention (maximum diameter in the plane direction 15 mm), the antibacterial glass having an average particle size of 20 zm,
- the change in the number of washings and the elution amount of silver ions when each is used will be described in detail. That is, the horizontal axis of FIG. 3 shows the number of times of washing using each colored antibacterial glass using a washing machine 50 as shown in FIG. 13 described later, and the vertical axis of FIG.
- the elution amount of silver ions into water (mg / (g'24Hrs)) is shown.
- the data for the colored antibacterial glass of the present invention is shown in actuality, and the data for the colored antibacterial glass having an average particle size of 20 ⁇ m is shown by the dotted line B.
- the colored antibacterial glass of the present invention has a predetermined maximum size in the plane direction and is not swept away by water pressure or the like. There is no. Therefore, it is possible to maintain the desired elution amount even after repeated use. It is understood. Therefore, it is understood that the colored antibacterial glass of the present invention can withstand long-term use.
- antibacterial glass with an average particle size of 20 ⁇ reduces the amount of residual antibacterial glass each time it is used. Therefore, the value of the elution amount is greatly reduced compared to the elution amount of silver ions immediately after the start of use. Therefore, it is understood that it is necessary to replenish antibacterial glass frequently in order to ensure the desired amount of elution of silver ions.
- a colored antibacterial glass having the following blending composition without containing an inorganic colorant.
- the weight ratio of nOZCaO is preferably set to a value in the range of 1.1 to L5.
- the weight ratio represented by ZriO CaO is a value within the range of 1.2 to 10, more preferably within the range of 1.5 to 8.
- the second glass composition is essentially free of ZnO, instead of Ag 0, CaO, B 2 O
- the content of Ag 2 O is 0.2.
- the content is in the range of 0.1 to 15% by weight, and the PO content is 30 to 80% by weight.
- the weight ratio of CaO / Ag O is 5 to: L5.
- the weight ratio represented by force ie, CaO / Ag 2 O, to a value within the range of 6 to 12, more preferably within a range of 7 to 10.
- the third glass composition contains Ag 0, CaO, BO, PO, and Al 2 O, and when the total amount is 100% by weight, the content of Al 2 O is 0. It is a colored antibacterial glass having a value within the range of 5 to 10% by weight.
- the content of the force mow AI O a value within the range of 1 to 5 wt 0/0 more favorable better les, and.
- the colored antibacterial glass contains an inorganic colorant, and the added amount of the inorganic colorant is within the range of 0.001 to 0.5% by weight relative to the total amount. It is characterized by.
- the initial appearance can be maintained distinctive while exhibiting a predetermined antibacterial effect over a long period of time.
- the action of the inorganic colorant can effectively prevent the resin discoloration prevention effect derived from silver ions, and even if it is provided with a covering member and is made into a force cartridge, it is present from the outside. Can be easily identified, and the replenishment time and replacement time of the colored antibacterial glass can be accurately determined.
- the addition amount of inorganic coloring agent in the colored antibacterial glass, with respect to the total weight 0. 003-0. More preferably mosquitoes be one value within the range of weight 0/0, 0.005 to 0 More preferably, the value is in the range of 05% by weight.
- the horizontal axis in FIG. 4 indicates the amount (% by weight) of cobalt oxide added to the colored antibacterial glass as a logarithm, and the vertical axis indicates the color developability (relative value) of the colored antibacterial glass.
- the coloring property of the colored antibacterial glass indicates that the larger the number, the better the color developing property, which is a value corresponding to the absorbance of visible light.
- the horizontal axis in FIG. 5 indicates the amount of addition (wt%) of the inorganic colorants (acid concord and copper oxide) in the colored antibacterial glass in logarithm, and the vertical axis indicates the colored antibacterial glass.
- the characteristic curve with the symbol A is the case where acid cobalt is used as the inorganic colorant
- the characteristic curve force with the symbol B is as the inorganic colorant. This is a case where copper oxide is used.
- the addition amount of the inorganic colorant is 0. It can be understood that a value within the range of 001-0.5% by weight is effective.
- the amount of the inorganic colorant contained in the colored antibacterial glass it is preferable to consider the amount of silver oxide added. That is, when the addition amount of the inorganic colorant contained in the colored antibacterial glass is CI and the addition amount of the silver oxide contained therein is C2, the ratio represented by C1ZC2 is in the range of 0.01 to 3. It is preferable to set the value within the range.
- the reason for this is that by controlling the amount of the inorganic colorant added in association with the amount of silver oxide added, the initial appearance and distinguishability can be maintained without suppressing the exertion of the predetermined antibacterial effect. Because it can. That is, when the ratio represented by C1 / C2 is less than 0.01, the effect of preventing discoloration may be poor. On the other hand, if the ratio force 3 ⁇ 4 represented by C1 / C 2 is exceeded, the antibacterial effect may be poor. Therefore, the ratio represented by C1 / C2 is within the range of 0.01 to 2. More preferably, the value is within the range of 0.05 to 1.
- the type of inorganic colorant is not particularly limited, but it can be colored in an oxidizing atmosphere, so that acid cobalt (CoO), copper oxide (CuO), chromium oxide (Cr 2 O 3), oxide-
- Neckel NiO
- acid manganese MnO
- neodymium oxide Nd 2 O 3
- acid erbium E
- sky blue color developability can be obtained with a relatively small amount of addition, and the initial appearance and distinguishability can be maintained without suppressing the antibacterial effect.
- chromium oxide if chromium oxide is used, a light green color can be obtained with a relatively small amount of addition, and the initial appearance and distinguishability can be maintained.
- the elution amount of silver ions in the colored antibacterial glass is set to a value within the range of 0.01 to 1,0 mg / (g-24Hr s).
- the elution amount of silver ions in the colored antibacterial glass is set to a value within the range of 0.051 to 0.5 mg / (g • 24 Hrs). Furthermore, it is more preferable to set the value within the range of 0 ⁇ 02 to 0.4 mg / (g′24Hrs).
- the elution amount of silver ions in the colored antibacterial glass can be measured according to the measurement method described in Example 1 described later. Furthermore, in the past, when used in washing machines, etc., it has been thought that the amount of silver ions eluted in colored antibacterial glass should be in the range of 0.5 to 100 mgZ (g'24Hrs). As a result, the antibacterial effect is increased, and it has been found that the same antibacterial effect can be obtained even with a smaller silver ion elution amount.
- the type is not particularly limited as long as it is a non-antibacterial glass, that is, a glass that dissolves in water and does not elute silver ions.
- a non-antibacterial glass that is, a glass that dissolves in water and does not elute silver ions.
- soda glass, borosilicate Glass, lead glass (crystal glass), quartz glass, aluminosilicate glass, and phosphate glass are preferable.
- SiO or the like as a glass network component is 35 to 65% by weight with respect to the total amount.
- Soda glass made by adding at least one of Al O and the like in the range of 15 to 35% by weight
- Non-antibacterial glass as a component is preferred ⁇ .
- a predetermined amount of a colorant, a reducing agent, an ultraviolet absorber and the like it is also preferable to add a predetermined amount of a colorant, a reducing agent, an ultraviolet absorber and the like.
- the shape of the non-antibacterial glass is not particularly limited, but is preferably, for example, spherical, flat, cylindrical, or polyhedral.
- the planar shape is more preferably a flat plate shape such as a rectangle, a polygon, a disc, an ellipse, an irregular shape, a hole, and the like.
- the non-antibacterial glass is formed into a flat plate shape such as a rectangle or a disk, so that even when it is placed in a predetermined place and brought into direct contact with water, only the non-antibacterial glass is used. This is because the colored antibacterial glass can also be effectively prevented from being swept away by water pressure and flowing out of a predetermined location.
- the maximum diameter (t3) of the non-antibacterial glass should be set to a value within the range of 5 to 20 nmi. More preferably, the value is more preferably in the range of 8 to 15 mm.
- the thickness (t4) of the non-antibacterial glass is preferably set to a value in the range of 0.1 to 10 mm.
- the thickness of the strong non-antibacterial glass is less than 0.1 mm, the mechanical strength is increased. This is because the temperature may be significantly reduced, handling may be difficult, and stable production may be difficult. On the other hand, if the thickness of the strong non-antibacterial glass exceeds 10 mm, it will be difficult to handle, or it will be difficult to manufacture stably.
- the thickness of the non-antibacterial glass is set to a value in the range of 1 to 8 mm, and to a value in the range of 2 to 5 mm. Is even more preferred.
- non-antibacterial glass it is preferable to make the addition amount of non-antibacterial glass into the value within the range of 10-3,000 weight part with respect to 100 weight part of colored antibacterial glass.
- the predetermined antibacterial property as a mixed antibacterial glass can be expressed, and the weight of the entire mixed antibacterial glass can be easily controlled. It is because it can do. In other words, with such an added amount of non-antibacterial glass, it becomes easy to mix uniformly with colored antibacterial glass, and it becomes difficult to be unevenly distributed. This is because the overall weight can be easily controlled.
- the value is within the range of 30 to 2000 parts by weight with respect to the part. 50-: It is more preferable to set the value within the range of LOOO parts by weight. Within the range of 70 to 200 parts by weight. Most preferably, the value of
- the covering member has a form in which a plurality of mixed antibacterial glasses are coated with an inorganic substance and an organic substance.
- the particles covering the mixed antibacterial glass titanium oxide, silicon oxide, colloid Dalsilica, zinc oxide, tin oxide, lead oxide, white carbon, acrylic particles, styrene particles, polycarbonate particles, etc. are preferred alone or in combination of two or more! /.
- the method of coating the mixed antibacterial glass with particles is not particularly limited.
- the mixed antibacterial glass and the particles are uniformly mixed and then heated at a temperature of 600 to 1200 ° C. It is preferable to fix it via a binder to be fused or a binder.
- the periphery of the mixed antibacterial glass 1CT is provided with a packaging member 1 as a covering member or a housing, A cartridge is preferred.
- a plurality of mixed antibacterial glasses 10 can be packaged by using a moisture-proof material such as an aluminum laminated film 16, or as shown in FIG. 7 (b). In this state, it is preferable to package the product, or to cover the periphery with a perforated member 18 as shown in FIG. 7 (c).
- ком ⁇ онент for the purpose of preventing oxidation or coloring, surfactants as a dispersant, stearic acid, myristic acid, sodium stearate, silane coupling agent, etc. It is preferable to add a pigment or dye as a coloring agent, such as a hindered phenol compound or hindered amine compound as an anti-hidging agent.
- a pigment or dye as a coloring agent, such as a hindered phenol compound or hindered amine compound as an anti-hidging agent.
- the addition amount of these additives is preferably determined in consideration of the effect of addition and the like. For example, it is preferable to set a value in the range of 0.01 to 30% by weight with respect to the total amount. More preferable.
- the mixed antibacterial glass is used, and the antibacterial glass that contains no inorganic colorant (colorless transparent antibacterial glass) is used against the total amount of the mixed antibacterial glass.
- the addition power S is preferable.
- a colored antibacterial glass having a relatively large maximum diameter (tl, t3) can be obtained even when the colorless transparent antibacterial glass has an average particle size of, for example, fine particles of 100 m or less. This is because the contact between the colorless and transparent antibacterial glasses can be inhibited, and a predetermined aggregation preventing effect can be exhibited.
- the colorless and transparent antibacterial glass in the range of 20 to 80% by weight with respect to the total amount of the mixed antibacterial glass. preferable.
- the mixed antibacterial glass when washing a cloth product using a washing machine, it is put into the washing tub of the washing machine to give a predetermined antibacterial property to the cloth product washing tub.
- the mixed antibacterial glass is preferable.
- a plurality of mixed antibacterial glasses are covered with the first water-permeable member 17 in detail.
- the periphery of the first water-permeable member 17 is further covered with the second water-permeable member 17b having a coarse mesh.
- the first water-permeable member 17 is formed into a bag shape as a whole, the periphery is sewn with a sealing member 17a, and mixed antibacterial glass (not shown) is enclosed.
- the second water-permeable member 17b is also formed into a bag shape as a whole, and a part thereof is sewn with the sealing member 17c, and the first water-permeable member 17 in which the mixed antibacterial glass is sealed is sealed. is there.
- the reason for this is as long as the mixed antibacterial glass for such a washing machine is used. This is because the predetermined antibacterial property can be efficiently imparted to the fabric product, the washing tub and the like simply by putting the mixed antibacterial glass coated in this way into the washing tub during washing. Moreover, since it is coated twice, it is possible to easily prevent the mixed antibacterial glass from flowing out even if it is stirred in a washing machine.
- Examples of the fine water-permeable first water-permeable member include a felt nonwoven fabric having a pore size of less than 0.1 mm.
- the second water-permeable member having a coarse mesh for example, the pore size is 0.2 mm or more, more preferably 2mn! Examples include mesh materials in the range of ⁇ 20mm.
- antibacterial materials include woven fabrics, textiles, non-woven fabrics, mat-like products, clothes, towels, footwear, and underwear in the case of washing machines.
- the mixed antibacterial glass As another usage of the mixed antibacterial glass, it is put into a bath tub filled with bath water and floated on the bath water to give a predetermined antibacterial property to the bath tub.
- Preferred to be mixed antibacterial glass for V Preferred to be mixed antibacterial glass for V ,.
- a plurality of mixed antibacterial glasses are surrounded by a fibrous shape holding member 19a, It is preferable that the periphery is further covered with a water-permeable permeable member 19b. Then, it is preferable that the bag entrance of the bag-like water permeable member 19b is fixed with a stopper 19c, for example, a ball shape as a whole.
- the mixed antibacterial glass for a bath can be used for holding the mixed antibacterial glass and can maintain a predetermined shape as a whole.
- the water supply pipe for the bath, the bath tub, the fountain, the water for draining the bath water, and the buoyancy are simply placed on the eve. This is because predetermined antibacterial properties can be efficiently imparted to Furumizu and bathtubs. If the overall shape of the mixed antibacterial glass for the bath is ball-shaped as shown in Fig. 9, it can also be used as a scrubbing tool.
- the sanitary ware is provided with the sanitary ware. It is preferable to use mixed antibacterial glass for imparting predetermined antibacterial properties to raw ceramics.
- a container 21 having water passages 21a, 21b, 21c, 21d it is preferably accommodated in a container 21 having water passages 21a, 21b, 21c, 21d. Further, it is preferable that a hinge 21g is provided and the structure is divided into two parts and can be opened and closed. Then, it is preferable to provide a fixing portion 21f having a hole in order to hang or fix the container 21 in a predetermined place with the mixed antibacterial glass accommodated.
- an antibacterial liquid containing silver ions by directly or indirectly charging the mixed antibacterial glass into a liquid tank or the like in a so-called atomizer or humidifier. . That is, the mixed antibacterial glass with a small weight change can stably contact the water and supply an antibacterial liquid having a constant silver ion concentration.
- the mixed antibacterial glass for sanitary ware as shown in Fig. 10 can be provided in the vicinity of the kitchen sink waste receptacle.
- so-called “slimming” is likely to occur in the power near the sink and in rubber products, but with the mixed antibacterial glass with little change in weight, the occurrence of such “smoothing” is prevented stably. can do.
- a flat colored antibacterial glass exhibiting an antibacterial effect by releasing silver ions can be produced including the following steps (A) to (B).
- the colored antibacterial property that can maintain the initial appearance and distinguishability while exhibiting a predetermined antibacterial effect over a long period of time. Glass can be produced efficiently.
- the glass raw material is heated at 1280 ° C. for 3 hours and a half to prepare a glass melt.
- the heating conditions in the melting furnace can be changed as appropriate according to the type of raw materials and the mixing ratio.
- the forming process is carried out in the next step to obtain a colored antibacterial glass having a predetermined shape by melting the glass raw material.
- the upper force molten glass 22 is allowed to fall naturally between the pair of rotating members 20a and 20b, and a predetermined mixed antibacterial glass 10 is formed using the flange 24 provided on the surface of the rotating member 20a. can do.
- a cooling pipe (not shown) is provided at the center of the pair of rotating members 20a and 20b so that the surface temperature of the rotating members 20a and 20b can be controlled.
- the colored antibacterial glass is formed into a strip shape through the thin-walled portion, a predetermined temperature is maintained, so cooling air is blown on the surface of the antibacterial glass for further cooling. It is preferable to attach.
- a surface polishing step is performed. That is, V blender, ball mill, vibration Using a stirrer such as a roll mill or a pulverizer, the resulting plate-shaped antibacterial glass and water or alcohol (isopropyl alcohol, etc.) are mixed and stirred at room temperature for about 10 minutes to 24 hours to give colored antibacterial properties. A clean surface should be ensured by removing foreign substances adhering to the glass surface. At the same time, it is preferable to deburr and further chamfer along the side of the flat antibacterial glass.
- Non-antibacterial glass can also be produced in the same manner as colored antibacterial glass, except that inorganic colorants and silver oxide raw materials are not added.
- the obtained colored antibacterial glass and non-antibacterial glass can be uniformly mixed using a mixing device.
- a propeller mixer a kneader, a Bonore mill, a sand mill, or the like can be used.
- the mixing step may be omitted, and the resulting colored antibacterial glass and non-antibacterial glass should be prepared separately and used in the mixed antibacterial glass coating container (clothing material). It may be a mode of mixing. In other words, in usage modes such as mixed antibacterial glass for washing and mixed antibacterial glass for bath, it is vibrated during washing or floating in the bath, so colored antibacterial glass and non-antibacterial glass This is because it mixes naturally with glass.
- ⁇ 3% by weight
- ZnO 30% by weight
- CaO 20% by weight
- B 2 O 5% by weight
- P0 42 times
- the glass raw material corresponding to each glass composition was rotated at 250 rpm for 30 minutes so that the amount of CoO as a colorant was 0.01% by weight. It stirred until it mixed uniformly on conditions.
- the glass raw material was heated at 1280 ° C. for 3 hours and a half to prepare a molten glass.
- the molten glass taken out from the glass melting furnace is introduced into a molding apparatus 40 as shown in FIG. 12, and a disc-shaped mixed antibacterial glass (rectangular small piece, maximum diameter (tl): 15 mm, thickness (t2): 4mm).
- a disc-shaped mixed antibacterial glass rectangular small piece, maximum diameter (tl): 15 mm, thickness (t2): 4mm.
- the obtained disc-shaped antibacterial glass (500 g) was put into a vibrating pole mill without using media. Next, 500 g of isopropyl alcohol or water was added, and in that state, the vibrating ball mill was operated at room temperature for 30 minutes, and a surface polishing process including a Paris removing process was performed.
- silica sand, soda ash, lime and the like were added.
- the temperature of the glass melting furnace was set to 1350 ° C, and the mixture was heated and melted for 10 hours.
- the molten glass taken out from the glass melting furnace is introduced into a molding apparatus 40 as shown in FIG.
- a disk-shaped non-antibacterial glass (rectangular piece, maximum diameter (t3) : 15 mm, thickness (t4): 4 mm) was molded.
- the obtained disc-shaped non-antibacterial glass (500 g) was put into a vibrating ball mill that does not use media. Next, 500 g of isopropyl alcohol or water was added, and in that state, the vibrating ball minole was operated at room temperature for 30 minutes, and a surface polishing process including a Paris removal process was performed.
- a stainless steel plate with a thickness of lmm and an area of 20cm x 20cm is provided with a recess of 0.5mm in depth and an area of 5cm x 5cm, filled with 100g (Wl) of mixed antibacterial glass.
- W2 weight of the mixed antibacterial glass remaining on the stainless steel plate
- the residual ratio of the mixed antibacterial glass ((Wl -W2) ZW1 X 100) was measured. Calculated. And from the calculated residual ratio, the outflow property of the mixed antibacterial glass was evaluated according to the following criteria.
- Residual rate is 90 to 100% by weight.
- Residual rate is 70 to less than 90% by weight.
- Residual rate is 30 to less than 70% by weight.
- X Residual rate is less than 30% by weight.
- a washing machine antibacterial evaluation of cotton cloth using the obtained mixed antibacterial glass was carried out. That is, using the washing machine shown in FIG. 13, 3 kg of cotton cloth was washed for 15 minutes in a state where the mixed antibacterial glass (20 g) of the usage mode shown in FIG. 8 was put in the washing tub of the washing machine. Next, the bacterial activity value of Staphylococcus aureus was measured on the cotton fabric after washing according to JIS L 1902 (bacterial solution absorption method). The bacterial activity value is a numerical value represented by Log (number of inoculated: 1.4 ⁇ 10 4 ) ⁇ Log (number of viable bacteria after 48 hours).
- Bacterial activity value is 1 or more.
- Bacterial activity value is 0, 1 or more.
- Bacterial activity value is 0.01 or more.
- Bacterial activity value is less than 0.01.
- bacteriostatic activity value of Staphylococcus aureus was measured on the cotton fabric after washing according to JIS L 1902 (bacterial liquid absorption method).
- the bacteriostatic activity value is a numerical value represented by Log (the number of untreated fungi: 6.5 ⁇ 10 6 ) ⁇ Log (the number of viable bacteria after 48 hours).
- Bacteriostatic activity value is 3.0 or more.
- Bacterial activity value is 2.0 or more.
- Bacterial activity value is less than 2.0.
- the antibacterial evaluation was performed using a washing machine, and the anti-discoloration effect of the obtained mixed antibacterial glass was evaluated. That is, the washing machine shown in FIG. 13 was used, and after antibacterial evaluation was performed for 48 hours, the mixed antibacterial glass was taken out and evaluated for discoloration prevention effect under the following conditions. A: No discoloration or the like is observed in the mixed antibacterial glass.
- Example 2 As shown in Tables 1 to 3, while changing the composition ratio of the colored antibacterial glass and the addition amount of the inorganic colorant (acidic cobalt), the maximum diameter (t3) of the non-antibacterial glass was changed. Except for the changes, mixed antibacterial glasses were prepared and evaluated in the same manner as in Example 1.
- Comparative Example 1 evaluation was performed in the same manner as in Example 1 except that the amount of cobalt oxide added to the colored antibacterial glass in Example 1 was 0.001% by weight.
- Comparative Example 3 was evaluated in the same manner as in Example 1, except that the amount of acid-cobalt added to the colored antibacterial glass in Example 1 was 0% by weight, that is, no power was added. did.
- Numbers 3 and 4 in FIG. 14 show photographs of the mixed antibacterial glass before the start of evaluation and the mixed antibacterial glass after the evaluation in Comparative Examples:! To 3, respectively.
- the mixed antibacterial glass of the present invention by mixing a colored antibacterial glass added with a predetermined amount of an inorganic colorant and a non-antibacterial glass that is non-soluble and does not change in weight. Even when used under harsh conditions for a long time, the amount of non-antibacterial glass is small and the change in weight is small enough to contact with water while maintaining the initial appearance and distinguishability. In this manner, a predetermined amount of silver ions can be repeatedly released.
- the mixed antibacterial glass of the present invention includes a washing machine, a dishwasher, an iron, a humidifier, a food washing tank, a medical equipment washer, a water tank for flush toilets, a barn washing device, and an artificial turf ground rotating nozzle. It can be suitably used directly or indirectly for various devices and usage modes such as a water-type cleaning device, a bath circulating water device, a cooling tower for cooling, a sprayer, and a garden hose.
- the mixed antibacterial glass is used in a usage mode where a considerable amount of rotational vibration or reciprocating motion is applied to the mixed antibacterial glass, such as a washing machine or a bath, the weight change of the mixed antibacterial glass is reduced. While being able to come into contact with water, it is not discolored in appearance. Suitable for fungal glass
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Abstract
Description
Claims
Priority Applications (2)
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CN2007800198415A CN101454253B (zh) | 2006-06-07 | 2007-04-26 | 混合抗菌性玻璃 |
JP2008520464A JP5114396B2 (ja) | 2006-06-07 | 2007-04-26 | 混合抗菌性ガラス |
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KR (1) | KR101024417B1 (ja) |
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WO (1) | WO2007141978A1 (ja) |
Cited By (11)
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WO2011148528A1 (ja) * | 2010-05-27 | 2011-12-01 | 興亜硝子株式会社 | 混合抗菌性ガラス |
JP2013013845A (ja) * | 2011-07-01 | 2013-01-24 | Takasago Thermal Eng Co Ltd | 流水設備用の抗菌器具 |
JP2013100278A (ja) * | 2011-10-21 | 2013-05-23 | Koa Glass Kk | 水処理剤および水処理剤の使用方法 |
WO2017205593A3 (en) * | 2016-05-27 | 2018-02-15 | Corning Incorporated | Bioactive borophosphate glasses |
US10647962B2 (en) | 2016-05-27 | 2020-05-12 | Corning Incorporated | Bioactive aluminoborate glasses |
US10751367B2 (en) | 2016-05-27 | 2020-08-25 | Corning Incorporated | Bioactive glass microspheres |
US10857259B2 (en) | 2017-11-28 | 2020-12-08 | Corning Incorporated | Chemically strengthened bioactive glass-ceramics |
US11198638B2 (en) | 2017-11-28 | 2021-12-14 | Corning Incorporated | Bioactive borate glass and methods thereof |
US11274059B2 (en) | 2017-11-28 | 2022-03-15 | Corning Incorporated | Bioactive glass compositions and dentin hypersensitivity remediation |
US11384009B2 (en) | 2017-11-28 | 2022-07-12 | Corning Incorporated | High liquidus viscosity bioactive glass |
US11814649B2 (en) | 2016-05-27 | 2023-11-14 | Corning Incorporated | Lithium disilicate glass-ceramic compositions and methods thereof |
Families Citing this family (5)
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JP2012037077A (ja) * | 2010-08-04 | 2012-02-23 | Panasonic Corp | 溶解装置及びそれを備えた給湯装置 |
JP2012056785A (ja) * | 2010-09-08 | 2012-03-22 | Takara Standard Co Ltd | ガラス粒の製造方法及び装置 |
JP5412605B1 (ja) * | 2012-02-15 | 2014-02-12 | 株式会社ピノーレ | 靴用エアゾール噴射装置および靴の抗菌処理方法 |
CN108793740A (zh) * | 2018-07-05 | 2018-11-13 | 徐涌涛 | 一种磷酸盐抗菌玻璃的制备方法 |
KR102301860B1 (ko) | 2019-11-14 | 2021-09-14 | 경상북도(농업기술원) | 방초매트 고정핀 설치기구 |
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- 2007-04-26 CN CN2007800198415A patent/CN101454253B/zh active Active
- 2007-04-26 WO PCT/JP2007/059429 patent/WO2007141978A1/ja active Application Filing
- 2007-04-26 JP JP2008520464A patent/JP5114396B2/ja active Active
- 2007-04-26 KR KR1020087029497A patent/KR101024417B1/ko active IP Right Grant
- 2007-06-01 TW TW096119728A patent/TWI347929B/zh not_active IP Right Cessation
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JP2005255517A (ja) * | 2004-03-08 | 2005-09-22 | Schott Ag | 抗菌性の屈折率を調整したリン酸塩ガラス |
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2011148528A1 (ja) * | 2010-05-27 | 2011-12-01 | 興亜硝子株式会社 | 混合抗菌性ガラス |
JP2012007870A (ja) * | 2010-05-27 | 2012-01-12 | Koa Glass Kk | 空調施設用混合抗菌性ガラス |
US20120015018A1 (en) * | 2010-05-27 | 2012-01-19 | Yoshinao Kobayashi | Mixed antibacterial glass |
US9017708B2 (en) | 2010-05-27 | 2015-04-28 | Koa Glass Co., Ltd. | Mixed antibacterial glass |
JP2013013845A (ja) * | 2011-07-01 | 2013-01-24 | Takasago Thermal Eng Co Ltd | 流水設備用の抗菌器具 |
JP2013100278A (ja) * | 2011-10-21 | 2013-05-23 | Koa Glass Kk | 水処理剤および水処理剤の使用方法 |
US10676713B2 (en) | 2016-05-27 | 2020-06-09 | Corning Incorporated | Bioactive borophosphate glasses |
US10647962B2 (en) | 2016-05-27 | 2020-05-12 | Corning Incorporated | Bioactive aluminoborate glasses |
WO2017205593A3 (en) * | 2016-05-27 | 2018-02-15 | Corning Incorporated | Bioactive borophosphate glasses |
US10751367B2 (en) | 2016-05-27 | 2020-08-25 | Corning Incorporated | Bioactive glass microspheres |
US11814649B2 (en) | 2016-05-27 | 2023-11-14 | Corning Incorporated | Lithium disilicate glass-ceramic compositions and methods thereof |
US10857259B2 (en) | 2017-11-28 | 2020-12-08 | Corning Incorporated | Chemically strengthened bioactive glass-ceramics |
US11198638B2 (en) | 2017-11-28 | 2021-12-14 | Corning Incorporated | Bioactive borate glass and methods thereof |
US11274059B2 (en) | 2017-11-28 | 2022-03-15 | Corning Incorporated | Bioactive glass compositions and dentin hypersensitivity remediation |
US11384009B2 (en) | 2017-11-28 | 2022-07-12 | Corning Incorporated | High liquidus viscosity bioactive glass |
US11446410B2 (en) | 2017-11-28 | 2022-09-20 | Corning Incorporated | Chemically strengthened bioactive glass-ceramics |
Also Published As
Publication number | Publication date |
---|---|
CN101454253A (zh) | 2009-06-10 |
JPWO2007141978A1 (ja) | 2009-10-15 |
TW200744973A (en) | 2007-12-16 |
KR20090008444A (ko) | 2009-01-21 |
CN101454253B (zh) | 2011-05-11 |
TWI347929B (en) | 2011-09-01 |
JP5114396B2 (ja) | 2013-01-09 |
KR101024417B1 (ko) | 2011-03-23 |
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