CN116234949A - Hollow body of tobermorite impregnated with functional component - Google Patents
Hollow body of tobermorite impregnated with functional component Download PDFInfo
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- CN116234949A CN116234949A CN202180063442.9A CN202180063442A CN116234949A CN 116234949 A CN116234949 A CN 116234949A CN 202180063442 A CN202180063442 A CN 202180063442A CN 116234949 A CN116234949 A CN 116234949A
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- impregnated
- xonotlite
- hollow body
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- vitamin
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/24—Alkaline-earth metal silicates
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
Abstract
The present invention provides a functional component-impregnated hollow xonotlite body which imparts a functionality to the hollow xonotlite body. The functional component-impregnated xonotlite hollow body is a hollow body impregnated with the functional component, and the hollow body contains a porous spherical shape constituted by a large number of aggregates of xonotlite needle-like crystals, and is impregnated with the functional component. In addition, the functional component is impregnated into the tobermorite hollow body, and the tobermorite hollow body slurry is used as a raw material slurry, and the slurry is dried by heating to disperse water and to be pulverized. In addition, the functional component-impregnated xonotlite hollow body is coated with colloidal silica, so that the release of the functional component can be controlled.
Description
Technical Field
The present invention relates to a xonotlite hollow body impregnated with a functional component containing a functional component and porous spherical bodies composed of a large number of needle-like crystals of xonotlite.
Background
Xonotlite is a representative needle-like crystal of calcium silicate hydrate, and is generally molded in the final step of the production process, and is often used as a calcium silicate board.
In addition, since it is used as a building material or a heat insulating material plate in its use, cement and fiber are often blended when a matrix is formed other than a silica material and a lime material in order to improve physical properties such as strength.
Further, xonotlite is often commercialized by water-filtering and molding in a slurry state having an average particle diameter of 30 μm to 100 μm, dehydrating by a drying line, and molding into a plate or a tube.
The following patent documents are cited as prior art documents related to such xonotlite.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 2-120283
Disclosure of Invention
Problems to be solved by the invention
However, although xonotlite has excellent properties, conventional calcium silicate hydrate is often a molded product for use as a building material or a heat insulating material, and it has not been found that granular powder as a hollow body can be used in other fields. In addition, there is no document for the hollow body of tobermorite containing a functional component.
In the present invention, it is considered that if a new application is found by imparting functionality to a xonotlite hollow body, the range of application of the xonotlite hollow body is widened, and the objective is to provide a xonotlite hollow body impregnated with a functional component.
Means for solving the problems
The present invention has the following features.
(1) A xonotlite hollow body impregnated with a functional component, characterized in that the hollow body contains a porous spherical shape composed of an aggregate of a large number of xonotlite needle-like crystals, and is impregnated with the functional component.
(2) The functional component-impregnated xonotlite hollow body as defined in claim 1, wherein the xonotlite hollow body slurry is a raw material slurry, and the powder is produced by dispersing water by heating and drying.
(3) The functional ingredient-impregnated xonotlite hollow body as claimed in claim 2, wherein the functional ingredient-impregnated xonotlite hollow body is coated with colloidal silica so that release of the functional ingredient can be controlled.
(4) The hollow body of tobermorite impregnated with silver ions, wherein the hollow body of tobermorite impregnated with the functional component of claim 1 is impregnated with silver ions as the functional component.
(5) A humidifying filter having the hollow body of tobermorite impregnated with silver ions according to claim 4 attached thereto.
(6) The vitamin-impregnated xonotlite hollow body, wherein the functional component-impregnated xonotlite hollow body as defined in claim 1 is impregnated with a vitamin as a functional component.
(7) A vitamin releasing filter having the hollow body of vitamin-impregnated xonotlite of claim 6 attached thereto.
(8) The hollow body of xonotlite impregnated with green tea catechins, wherein the hollow body of xonotlite impregnated with the functional component of claim 1 is impregnated with green tea catechins as the functional component.
(9) A fiber obtained by kneading the hollow body of the green tea catechin-impregnated xonotlite according to claim 8 in a resin.
(10) A membrane obtained by kneading the hollow body of the green tea catechin-impregnated xonotlite according to claim 8 in a resin.
(11) The platinum-impregnated hollow xonotlite body according to claim 1, wherein the functional component-impregnated hollow xonotlite body is impregnated with platinum particles and vitamin C powder as the functional components.
(12) A fiber obtained by kneading the platinum-impregnated xonotlite hollow body of claim 11 in a resin.
(13) A fabric obtained by kneading the platinum-impregnated xonotlite hollow body in the resin.
Effects of the invention
The hollow body impregnated with the functional component of the present invention can be used for sheets, films and filaments which have not been used for molded articles.
Further, the xonotlite powder can be used for a sheet, a film, a filament, an ink, a paint, or the like having a heat insulating function and a heat resistant function.
Further, these conventional materials can be post-processed by dipping or the like, and various new functionalities can be provided.
Further, by impregnating the hollow body having a shell structure with the functional component, high functionalities such as deodorizing, sterilizing, antifungal, antiviral, moisturizing, and antioxidant effects can be imparted, and a product having a further added value can be provided.
Drawings
Fig. 1 is an SEM image of xonotlite powder of an embodiment in which a nano platinum liquid as a functional component is mixed with a hollow xonotlite body and impregnated in the hollow xonotlite body in a spray dryer. A surface image of 1000 times (a), 2000 times (b), and 5000 times (c).
Fig. 2 is an SEM image of the crushed xonotlite powder and the cross-sectional state thereof observed. The approximate thickness of the shell of the xonotlite powder can be measured at a magnification corresponding to 5000 times that of fig. 1 (c).
Fig. 3 is a schematic view showing a basic process of producing xonotlite powder by using a spray dryer.
Fig. 4 is a schematic view of impregnation processing and a filter in which a functional component impregnated with xonotlite powder is attached to a nonwoven fabric.
Fig. 5 is a perspective view of a humidifying filter in which a non-woven fabric loaded with tobermorite subjected to impregnation processing is pleated.
Fig. 6 is a table showing the results of measurement of the sterilization performance of the humidification filter.
Fig. 7 is a graph showing a relative comparison of vitamin release amounts.
Fig. 8 is a graph showing the deodorizing rate produced by the green tea catechin filter.
Fig. 9 is a table showing the results of the moisturizing test.
Detailed Description
The functional component-impregnated hollow body particles of the present invention are hollow bodies impregnated with a functional component, and are characterized in that the hollow bodies contain porous spheres composed of a large number of aggregates of needle-like wollastonite crystals and are impregnated with the functional component.
Details of which are shown in fig. 1.
Fig. 1 is an SEM image of a xonotlite powder in which a functional component (nano-platinum liquid) is mixed in a xonotlite hollow body and the xonotlite hollow body is impregnated with the nano-platinum liquid in a spray dryer according to the embodiment.
Fig. 1 (a) is an image of x 1000, which is an image of a proportion of 10 μm in width of a horizontal white line, (b) is an image of x 2000, which is an image of a proportion of 10 μm in width of a horizontal white line, and (c) is an image of x 5000, which is an image of a proportion of 5 μm in width of a horizontal white line.
Fig. 2 is an SEM image showing a cross section of the crushed xonotlite powder of fig. 1.
The SEM image is a 5000 image corresponding to FIG. 1 (c), which is about 10 μm in diameter. From this ratio, it can be estimated that the thickness of the shell of the powder is about 2 μm.
If a few xonotlite powders are crushed to obtain the size and the thickness of the shell, it can be judged that the external diameter of the xonotlite powder is in the range of 3 to 50 μm, and the thickness of the shell is in the range of about 0.5 to 2 μm.
In the present invention, technical terms are defined as follows.
(A) Xonotlite hollow body: spherical particles synthesized by hydrothermal reaction (so-called green chlorella-like morphology)
(B) Tobermorite hollow body slurry: aqueous solution of tobermorite hollow bodies
(C) The functional component is impregnated into the xonotlite hollow body: particles obtained by impregnating a xonotlite hollow body with a functional component
(D) Xonotlite powder: powder made using spray dryer
The constitution of the present invention will be described in detail below.
< xonotlite (xonotlite) >)
Tobermorite becomes Ca 6 Si 6 O 17 (OH) 2 A hollow body having a lamellar outer shell formed by entangling a large number of needle-like crystals (see fig. 2).
As is clear from fig. 1, the outer shell is porous because it is formed of an aggregate of needle-like crystals, and can gradually release the functional component impregnated in the hollow body to the outside.
Needle crystals of tobermorite can be produced by adding water to a raw material (raw material slurry is produced by adding water to a lime raw material or a silicate raw material) in a pressure vessel (autoclave), mixing and stirring the raw materials, adding steam, and slowly performing a chemical reaction (hydrothermal synthesis).
The needle-like crystals can be produced into various products according to the application by controlling the pressure in the autoclave, the reaction time, and the mixing and stirring time.
In addition, by performing hydrothermal synthesis while mixing and stirring, a spherical hollow body can be produced.
In the hydrothermal synthesis, the concentration of the raw material slurry in the autoclave is preferably 3 to 8%.
This is because, in this range, a large amount of nano-sized needle crystals of tobermorite are easily produced.
As a raw material for producing the needle-like crystals of xonotlite, quicklime, slaked lime, or the like can be used as a calcareous raw material, and amorphous, nanosized silica sol (for example, colloidal silica, or the like) is preferably used as a silicic acid raw material.
< silicic acid Material >)
As the silica sol, it is preferable to use a Brinell value of 3000cm at 50 mass% or more 2 /g～15000cm 2 Crystalline silica in the range of/g.
In particular, as the crystalline silica, micronized silica powder is preferably used.
In addition, as another silicic acid material, a Brinell value of 3000cm can be used 2 Amorphous silica (e.g., diatomaceous earth, silica fume, microsilica, etc.) of not less than/g.
< match >
In addition, the mixing ratio of the lime material and the silicate material in the production of the needle-like crystals of xonotlite was converted to CaO and SiO, respectively 2 Preferably 0.8 to 1.2 (CaO/SiO) 2 )。
Further, water in an amount of 5 to 20 times, preferably 7 to 16 times by mass is added to the lime material and the silicate material, and the mixture is mixed and dispersed to prepare a material slurry.
The raw material slurry was subjected to a hydrothermal synthesis reaction in a pressure vessel (autoclave) which was capable of stirring.
In the hydrothermal synthesis reaction in the autoclave, the temperature is preferably raised to 150 to 230 ℃ over 40 to 90 minutes and lowered over 1 to 12 hours, because a large amount of needle crystals of tobermorite are easily produced.
In addition, the pressure in the autoclave is 12 to 18kg/cm 2 Is rotated while being pressed by water vaporSlowly stirring while vibrating.
If the amount is outside the above-mentioned range, it is difficult for the hydrothermal synthesis reaction to occur between the lime material and the silicate material, and other crystals such as tobermorite (tobermorite) are easily produced instead of tobermorite, which is not preferable.
Tobermorite is needle-shaped and does not have a spherical shape, and therefore does not have a hollow portion for supporting a functional component. In addition, the heat resistance is also low.
If the water vapor pressure in the autoclave was low, crystallization reaction did not occur.
As described above, by controlling the conditions of the hydrothermal synthesis reaction, the needle-like crystals of tobermorite are obtained from the raw material slurry, and by controlling the mixing and stirring in the autoclave, the size of the hollow body of tobermorite and the thickness of the shell can be controlled.
< impregnation of functional component >)
Next, the functional component was impregnated into the spherical tobermorite hollow body thus produced.
In the present invention, the term "impregnation" means that a liquid substance is allowed to enter a porous substance, and the following means is provided.
There may be mentioned:
(1) The liquid substance is held as it is in the porous substance.
(2) The liquid substance is allowed to enter the porous substance, and the liquid is evaporated, so that the components in the liquid substance are precipitated in the porous substance.
(3) The liquid material is directly solidified to fill the porous structure, thereby producing a compact body.
< method of impregnating a xonotlite hollow body with a functional component >
The following methods are examples of a method for impregnating the xonotlite hollow bodies with the functional component.
(1) The resultant mixture was mixed with a raw material slurry (also referred to as a xonotlite gel) before autoclave treatment to prepare a functional component-impregnated hollow body.
As the main functional component to be mixed in this case, the functional component is limited to weakly acidic, neutral or basic.
Examples thereof include silver ions, copper ions, vitamin derivatives, ferric citrate, titanium oxide, tungsten oxide, and the like.
(2) After autoclave treatment, the obtained slurry (5 to 20% in concentration) of the hollow xonotlite body was mixed with the functional component, and the hollow xonotlite body was pulverized by a spray dryer in a state of being impregnated with the functional component.
The main functional components to be mixed in this case include ascorbic acid, collagen, tannic acid, catechin, xylitol, hinokitiol, phytoncide, copper sulfate, chitosan copper, silver acetate, citric acid, and the like.
(3) There is also a method of impregnating a dried xonotlite powder obtained by using a spray dryer or the like with a functional component (described later).
The main functional components to be mixed in this case include oil-soluble vitamins (a, B, C, D, E), squalane oil, olive oil, alaglycerol, linseed oil, and the like.
These oil-soluble components are absorbed into the interior of the xonotlite powder. In mass production, the absorption can be performed in a short time by placing in a vacuum apparatus.
Functional component >
The functional component may be defined as an action of the substance, and in the present invention, for example, the following substances are listed.
(1) Deodorant, degerming agent, etc. (applicable to air filters, etc.)
(2) Vitamins, hyaluronic acid, collagen, perfume, etc. (applicable to cosmetics, etc.)
(3) Deodorant, sound absorbing material, photocatalyst, insect repellent, etc. (applicable to wallpaper, building material, etc.)
In the present invention, in particular, components having antibacterial and deodorizing functions such as green tea catechins, phytoncides, activated carbon (ink) and the like can be mentioned; aromatic components, and natural tree components having repellent effects on mites, mosquitoes, etc.; an antibacterial component with fresh-keeping effect on vegetables and fruits; deodorizing components of odor components such as VOCs, etc.
The aromatic components include phytoncide, rosemary, lavender, and lemon grass, which have effects of healing and sleeping, and eucalyptus oil, hinokitiol, and lemon grass, which have effects of insect prevention, and nanometer platinum and low molecular collagen, which have effects of moisture retention.
Coating >
The coating layer may be further formed on the outer shell of the xonotlite hollow body impregnated with the functional component.
The coating layer may be colloidal silica or the like.
By forming the coating layer, the amount of the functional component released to the outside air can be controlled.
In addition, the strength and water resistance of the xonotlite hollow body can be ensured.
< drying device >)
Next, the tobermorite hollow body impregnated with the functional component is made into a slurry, and water is dispersed by a drying device to prepare a dry powder (also referred to as tobermorite powder).
Examples of the drying device for dispersing water include a spray dryer, a slurry dryer, a flow tank dryer, and the like, which heat and dry the slurry to process the slurry into powder.
Fig. 3 shows a basic flowchart as an example of producing xonotlite powder.
First, a raw material slurry for a hydrothermal synthesis reaction is prepared before being fed into a spray dryer.
As a raw material liquid for producing the xonotlite hollow body, a raw material slurry was produced in a ratio of lime raw material 5, silicic acid raw material 5, and water 90.
The raw material slurry was put into an autoclave at a pressure of 12kg/cm 2 Is subjected to hydrothermal synthesis by stirring while imparting rotation and vibration for 8 hours to form porous spheres (hard silica) composed of a mass of aggregates of needle-like crystals of tobermoriteA calcite hollow body slurry).
In the formation of the xonotlite hollow bodies, slaked lime having a particle diameter of 100 μm or less is used as a lime raw material, and silica sol having a particle diameter of 100nm or less is used as a silicic acid raw material.
Then, a nano platinum liquid was mixed as a functional component in the resulting tobermorite hollow body slurry to prepare a slurry in which the tobermorite hollow body (particles in which the tobermorite hollow body is impregnated with the functional component) was impregnated with the functional component.
In the production of the slurry in which the functional component is impregnated with the xonotlite hollow bodies, the mixing ratio of the nano-platinum liquid as the functional component is as follows.
That is, finally, a nano platinum concentration liquid of 5 to 10% by mass and 10ppm by mass is added so that the nano platinum concentration contained in the xonotlite powder becomes 0.5 to 1ppm, and the mixture is adjusted.
The drug used as the nano-platinum liquid was "nano-platinum particle water PTB-10" manufactured by Seafbeat, inc.
< control of particle size >)
Next, a spray dryer was used to make xonotlite powder.
In this case, the size of the xonotlite powder can be controlled by adjusting the temperature, the air volume, the intensity, and the like of the sprayed air.
In addition, by adjusting the viscosity of the paste to 500cp centipoise or less (e.g., addition of surfactant), the size to the nano-scale can be controlled.
Example of use of xonotlite powder
Next, an example of application of the xonotlite powder will be described.
For example, the following applications are exemplified.
(1) The xonotlite powder is kneaded into a material such as a resin.
(a) Examples of fibers
The product obtained by kneading the raw materials such as PP, nylon, and polyester is processed into fibers, and the fibers are woven and processed into filters, clothing, sleeping gear, and vehicle seat covers.
The product can be endowed with heat insulation, sterilization, mold resistance, virus resistance, tempering, moisture preservation, insect prevention, oxidation resistance and other functions.
It is preferable to use a core-sheath fiber having a double structure of a sheath and a core for kneading the fibers.
For example, for the fiber having the PP composite monofilament structure, a fiber in which catechin is mixed with polypropylene seed in a sheath portion (outer periphery), a core material of 100% polypropylene, or the like can be used.
(b) Examples of inks, coatings, and the like
The addition of these components can impart heat insulation, sterilization, mold resistance, insect control, fragrance (aroma, etc.), and other functions.
(c) Other examples
The raw materials such as PET, PE, polyurethane, and polyvinyl chloride are kneaded to prepare films and sheets, and the freshness-retaining effect can be imparted to the products using the same.
(2) The impregnation process is performed in a solution in which the xonotlite powder is dispersed.
(a) Examples of nonwoven fabrics
A nonwoven fabric such as PET, nylon or rayon is impregnated with xonotlite powder, and gaps between the surface and the inside of the nonwoven fabric are filled with the xonotlite powder.
Thus, the nonwoven fabric can be provided with heat insulation, sterilization, mold resistance, virus resistance, moisture retention, insect prevention, oxidation resistance, and other functions.
(b) Examples of fibers such as cotton, wool, silk, etc
The fibers are impregnated, and the product using these fibers can be provided with functions such as sterilization, mold resistance, virus resistance, moisture retention, insect resistance, ultraviolet ray resistance, and oxidation resistance.
(c) Examples of fabrics such as curtains and bed sheets
The fabric is impregnated with the composition, and the product using the fabric can be given heat insulation, sterilization, insect control, fragrance (aroma, etc.), and other functions.
Next, an embodiment of the present invention will be described.
Example 1
As example 1, an example in which a nonwoven fabric impregnated with vitamins as functional components was applied to an antibacterial humidifying filter was shown.
As a blend of a raw material slurry for a spray dryer, a xonotlite hollow body (particle diameter 100 μm or less) was blended as a solid component: 10 to 20 parts by mass of silver ceramics (silver ion, east Asia synthesized v. Delta. Compound 330) having a particle size of 10 μm or less as a functional component: 1 to 5 parts by mass of colloidal silica: 10-30 parts by mass of water: the remainder was mixed to prepare a raw material slurry for spray-drying.
The raw material slurry thus produced was subjected to a spray dryer to produce a silver ion-impregnated xonotlite powder having an average particle size of 10. Mu.m.
The silver ion is impregnated with xonotlite powder: 5-20 parts by mass of acrylic emulsion: 10-30 parts by mass and the balance: and (3) preparing water into the impregnation liquid with the viscosity adjusted.
< dipping Process >)
Next, the nonwoven fabric was subjected to an impregnation process in the prepared impregnation liquid, so that the nonwoven fabric was uniformly and only a predetermined amount of silver ion-impregnated xonotlite powder was adhered thereto.
Then, as shown in fig. 4, the impregnated nonwoven fabric was lifted up, and heated and dried at 100 to 130 ℃ in a drying oven to produce a xonotlite-loaded nonwoven fabric.
The xonotlite-loaded nonwoven fabric was pleated to prepare a wet filter for use as the filter shown in fig. 5.
The humidification filter is mounted on a humidifier, an air cleaner, or the like.
Fig. 6 shows the results of measurement of the sterilization performance of the humidification filter manufactured as described above.
As shown in the table of fig. 6, the concentration of the immersion liquid was changed to 2%, 5%, 7.5% by mass ratio, and the effect of the performance of the humidifying filter was examined.
As a result, it showed that general bacteria floating in the air (Escherichia coli, staphylococcus aureusEtc.) from the number of primary bacteria (blank 6.5X10) 5 And personal) a decrease.
That is, the number of bacteria in the initial stage (at the beginning) was 400 for the air passing through the humidifying filter containing 2% silver ions, and the number was reduced to 3.3X10 after 2, 4 and 6 months, respectively 3 、5.1×10 4 、2.1×10 5 And each.
In addition, the number of humidification filters is less than 20 in each case, and the number of humidification filters is 5 to 10 mass%.
In the above-mentioned impregnating solution, an acrylic binder, a vinyl acetate binder, and the like, which are about 5% aqueous emulsions, are added as binders.
Example 2
As example 2, an example in which a nonwoven fabric impregnated with vitamins as functional components was applied to a filter for releasing vitamins was shown.
As a blend of a raw material slurry for a spray dryer, a xonotlite hollow body (particle diameter 100 μm or less) was blended as a solid component: 30 to 50 parts by mass of a vitamin having a particle size of 10 μm or less as a functional component: 15-40 parts by mass of colloidal silicon dioxide: 10-30 parts by mass of water: the remainder was mixed to prepare a raw material slurry for spray-drying.
The prepared raw material slurry was subjected to spray-drying to prepare a vitamin-impregnated xonotlite powder having an average particle size of 10. Mu.m.
The vitamins were impregnated with xonotlite powder: 30 to 50 mass portions of acrylic emulsion is added: 10-30 parts by mass and the balance: and (3) preparing water into the impregnation liquid with the viscosity adjusted.
Wherein the vitamins are vitamins having the following components such as vitamin B and vitamin C.
Examples of vitamin C include L-ascorbic acid and magnesium L-ascorbyl phosphate, and examples of vitamin B include vitamin B1, vitamin B2, niacin, pantothenic acid, vitamin B6, vitamin B12, folic acid, and biotin.
One or more of them are combined as vitamins.
< dipping Process >)
Next, in order to impregnate the nonwoven fabric as a base material with the prepared impregnation liquid, impregnation processing is performed so that the nonwoven fabric is uniformly and only in a predetermined amount attached with the vitamin-impregnated xonotlite powder.
Then, as shown in fig. 4, the impregnated nonwoven fabric was lifted up, and heated and dried at 100 to 130 ℃ in a drying oven to produce a xonotlite-loaded nonwoven fabric.
The xonotlite-loaded nonwoven fabric was processed into a shape shown in the lower part of fig. 4, and a vitamin-releasing filter was produced and mounted on an air conditioner, an air cleaner, or the like.
Fig. 7 shows the results of investigation of the amount of released vitamins in the vitamin releasing filter of example 2.
The horizontal axis shows the amount of vitamin released (vertical axis represents the concentration of ascorbic acid (ppm)) when the vitamin impregnation ratio (mass%) is changed from 5 to 40%.
That is, the effect of the vitamin release amount of the vitamin release filter was examined by changing the vitamin concentration of the impregnating solution to 5 to 40% by mass ratio.
It was found that at any concentration, vitamin was effectively released from the vitamin-releasing filter.
Example 3
Example 3 shows an example of application to a fiber or film obtained by kneading green tea catechins as functional components in a resin.
As a blend of a raw material slurry for a spray dryer, a xonotlite hollow body (particle diameter 100 μm or less) was blended as a solid component: 5 to 10 parts by mass of green tea catechins having a particle size of 10 μm or less as a functional component: 15-40 parts by mass of colloidal silicon dioxide: 10-30 parts by mass of water: the remainder was mixed to prepare a raw material slurry for spray-drying.
The raw material slurry thus prepared was subjected to spray-drying to produce a green tea catechin-impregnated xonotlite powder having an average particle size of 10. Mu.m.
The size of the xonotlite powder impregnated with the functional component (green tea catechin) is preferably 10 μm or less.
If large, it becomes larger than the thickness of the sheath portion, and is easily detached.
If small, it is difficult to expose the inside of the submerged sheath portion on the surface. The effect of the functional component is hardly exhibited.
Impregnating the green tea catechins with xonotlite powder: 2 to 15 parts by mass of the product obtained by mixing the components in the resin is processed into fibers and films, and the functional fibers, sheets and wrapping materials are obtained.
The resin may be appropriately selected depending on the application, and in particular, in the clothing, it is preferable to mix the resin with a resin such as nylon or polyester.
The fibers are produced mainly as fibers for clothing, and the filaments are produced as air filters for air conditioners, air cleaners, and the like, and the films can be produced as preservative films.
Fig. 8 shows the deodorizing effect when a green tea catechin filter using the kneaded fiber of example 3 was used.
The green tea catechin PP filter (catechin PP filter and catechin PP filter+dyed polyurethane filter) using the core-sheath double structure (the core is polypropylene, and the sheath is a composite fiber of which catechin is mixed with polypropylene) has an ammonia deodorizing rate of 80% or more on the vertical axis, and shows an excellent effect compared with the conventional products.
In example 3, green tea catechins were used, but impregnation of other functional components may also be applied.
Examples thereof include a fragrant component, a natural tree component having a repellent effect against mites and mosquitoes, an antibacterial component having a preservative effect against vegetables and fruits, and a deodorizing component of an odor component such as VOC.
The aromatic components include phytoncide, rosemary, lavender, and lemon grass, which have effects of healing and sleeping, and eucalyptus oil, hinokitiol, and lemon grass, which have effects of insect prevention, and nanometer platinum and low molecular collagen, which have effects of moisture retention.
Examples of the antibacterial deodorizing component include phytoncide and activated carbon (ink).
Example 4
Example 4 shows an example of a fiber obtained by kneading a resin with an aqueous solution (functional component) (referred to as nano pt) obtained by dissolving platinum particles and vitamin C powder in water, instead of green tea catechin of example 3.
As the fiber to be used, a composite fiber having a double structure of a core and a sheath (the core is nylon, and the sheath is a nylon mixed with nano pt) is used.
The results of the moisture test of the fabrics (tights and stockings) manufactured using the composite fiber are shown in fig. 9.
The skin elasticity and the skin moisture content of the test subjects before and after wearing the tights and the stockings were evaluated by comparison with those of nylon commercial products (the table is referred to as a control).
The tactile sensor and the moisture sensor, which are trade names "back sensor" (facial care sensor manufactured by yaki electric corporation), were used as the measuring instrument, and the measurement was performed as follows.
The skin elasticity and the moisture content before and after wearing were measured.
Samples and controls of examples were worn at 25 ℃ in 55% air conditioned space, with the same desk work being done every 3 hours.
After 3 hours from wearing, the skin elasticity and the moisture content inside the thighs, which are the wearing parts, were measured. The measurement site was 3.
As a result, in the stockings of examples, when the commercial product (control) was 100, the relative skin moisturization value (elasticity+moisture content) was increased to 118 to 122%. Likewise, with the turnout coat of the example, it is raised to 131 to 140%.
Industrial applicability
The hollow body impregnated with a functional component of the present invention can be used for sheets, films and filaments which have not been used for molded articles.
Further, the xonotlite powder can be used for a sheet, a film, a filament, an ink, a paint, or the like having a heat insulating function and a heat resistant function.
Further, these conventional materials can be post-processed by dipping or the like, and various new functionalities can be provided.
Further, it is possible to provide products with a higher added value by imparting high functionalities such as deodorizing, sterilizing, antifungal, antiviral, moisturizing, and antioxidant effects, and it is possible to provide products with a higher industrial availability.
Claims (13)
1. The functional component-impregnated xonotlite hollow body is a hollow body impregnated with a functional component, and is characterized in that the hollow body contains a porous spherical shape constituted by an aggregate of a large number of xonotlite needle crystals, and is impregnated with a functional component.
2. The functional component-impregnated xonotlite hollow body as claimed in claim 1, wherein the xonotlite hollow body slurry is a raw material slurry, and the powder is obtained by dispersing water by heating and drying.
3. The functional ingredient-impregnated xonotlite hollow body as claimed in claim 2, wherein the functional ingredient-impregnated xonotlite hollow body is coated with colloidal silica so that release of the functional ingredient can be controlled.
4. The hollow body of tobermorite impregnated with silver ions, wherein the hollow body of tobermorite impregnated with the functional component of claim 1 is impregnated with silver ions as the functional component.
5. A humidifying filter having the hollow body of xonotlite impregnated with silver ions as claimed in claim 4 attached thereto.
6. The vitamin-impregnated xonotlite hollow body, wherein the functional component-impregnated xonotlite hollow body as defined in claim 1 is impregnated with a vitamin as a functional component.
7. A vitamin releasing filter comprising the hollow body of vitamin-impregnated xonotlite according to claim 6.
8. The hollow body of xonotlite impregnated with green tea catechins, wherein the hollow body of xonotlite impregnated with the functional component of claim 1 is impregnated with green tea catechins as the functional component.
9. A fiber obtained by kneading the hollow body of green tea catechin-impregnated xonotlite according to claim 8 in a resin.
10. A membrane obtained by kneading the hollow body of green tea catechin-impregnated xonotlite according to claim 8 in a resin.
11. The platinum-impregnated hollow xonotlite body according to claim 1, wherein the functional component-impregnated hollow xonotlite body is impregnated with platinum particles and vitamin C powder as the functional components.
12. A fiber obtained by kneading the platinum-impregnated xonotlite hollow body in a resin.
13. A fabric obtained by kneading the platinum-impregnated xonotlite hollow body in a resin.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020156236A JP7148934B2 (en) | 2020-09-17 | 2020-09-17 | Xonotlite Hollow Body Impregnated with Functional Ingredients |
| JP2020-156236 | 2020-09-17 | ||
| PCT/JP2021/034038 WO2022059727A1 (en) | 2020-09-17 | 2021-09-16 | Functional component-impregnated hollow xonotlite body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116234949A true CN116234949A (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180063442.9A Pending CN116234949A (en) | 2020-09-17 | 2021-09-16 | Hollow body of tobermorite impregnated with functional component |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7148934B2 (en) |
| CN (1) | CN116234949A (en) |
| WO (1) | WO2022059727A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7301431B1 (en) * | 2022-09-15 | 2023-07-03 | 泰陽株式会社 | Method for producing functional ingredient emitter particles |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2782198B2 (en) * | 1988-07-01 | 1998-07-30 | 日本インシュレーション株式会社 | Calcium silicate compact |
| JP3541201B2 (en) * | 1994-03-14 | 2004-07-07 | レンゴー株式会社 | Silver-containing zonotolite |
| JP4879000B2 (en) | 2006-11-29 | 2012-02-15 | アース製薬株式会社 | Disinfectant |
| JP4970546B2 (en) | 2007-10-03 | 2012-07-11 | アサヒグループホールディングス株式会社 | Granules, tablets and methods for producing them |
| JP5540295B2 (en) | 2010-03-31 | 2014-07-02 | 国立大学法人 新潟大学 | Coated porous inorganic particles containing latent heat storage material and heat storage material containing the same |
| JP6056114B2 (en) | 2015-05-30 | 2017-01-11 | 富田製薬株式会社 | Oily substance-containing powder composition |
| JP6864452B2 (en) | 2016-09-28 | 2021-04-28 | 太平洋セメント株式会社 | Material for promoting algae growth |
| EP3321329A1 (en) | 2016-11-11 | 2018-05-16 | Prtc Nv | Calcium silicate powders |
-
2020
- 2020-09-17 JP JP2020156236A patent/JP7148934B2/en active Active
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2021
- 2021-09-16 CN CN202180063442.9A patent/CN116234949A/en active Pending
- 2021-09-16 WO PCT/JP2021/034038 patent/WO2022059727A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022049931A (en) | 2022-03-30 |
| JP7148934B2 (en) | 2022-10-06 |
| WO2022059727A1 (en) | 2022-03-24 |
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