JP2002053416A - Functional material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a functional material which inhibits the deterioration of organic materials effectively irrespective of using inorganic particles showing photocatalytic function and can sufficiently exhibit deodorant or antimicrobial effect. SOLUTION: This functional material comprises a multiple composite particle (BCT) bearing a structure in which the surface of the inorganic particle (T) showing photocatalytic function is partially coated with the composite particle (BC) between a ceramics component (C) and an animal and plant-derived active ingredient (B) showing at least one of deodorant, antimicrobial and antiallergic effects. Further, it is a functional material in which such a multiple composite particle (BCT) is included or/and held in the inside or/and on the surface of an object material (O).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a functional material comprising specific composite particles using inorganic particles having a photocatalytic function. In addition, the present invention relates to a functional material in which the specific composite particles are contained or / and carried inside or / and on the surface of a target material.

[0002]

2. Description of the Related Art In the case of inorganic particles having a photocatalytic function, in particular, titanium oxide photocatalyst, a strong oxidizing power is exhibited by the photocatalytic reaction, and organic substances in contact therewith are oxidatively decomposed to disappear, resulting in excellent deodorization. Action and antibacterial action are exhibited. In addition, since super-hydrophilicity is also exhibited, dirt does not easily adhere to the surface, and even if dirt adheres, it can be easily washed away. Therefore, inorganic particles having a photocatalytic function represented by photocatalytic titanium oxide are widely used as deodorants, antibacterial agents, antifouling agents, and the like.
In this case, UV irradiation is necessary for the photocatalytic titanium oxide to perform its function.However, even under sunlight or a fluorescent lamp, a suitable effect is exhibited, and recently, even in the visible light region, Some that demonstrate that function have also been developed.

By the way, inorganic particles having a photocatalytic function (hereinafter, may be represented by photocatalytic titanium oxide).
Has the effect of decomposing organic matter as described above,
If this is covered with an organic object, the object itself will also deteriorate. When the photocatalytic titanium oxide is used for the purpose of a paint or a coating agent in the form of a composition with a polymer binder, the polymer binder also deteriorates. Also, when a photocatalytic titanium oxide is blended with a resin component to produce a fiber, a film, or a molded article of any other form, the resin itself constituting the molded article deteriorates.

Such deterioration of organic materials (organic objects, polymer binders, resin moldings, etc.) is based on a strong oxidizing action which is an essential action of titanium oxide photocatalyst. As the performance of organic materials increases, the deterioration of organic materials also increases.Therefore, it is originally intended to exert such functions as deodorization, antibacterial properties, and antifouling while reliably preventing such deterioration. It is an impossible desire.

[0005] Since the photocatalytic titanium oxide exhibits deodorant, antibacterial and antifouling properties and deteriorates the organic material by contact with the photocatalytic titanium oxide, if the photocatalyst titanium oxide and the organic material are directly contacted. If contact is prevented or the contact is significantly reduced, it is expected that deodorant properties and antibacterial properties will be exhibited while preventing deterioration of the organic material. From such a viewpoint, it has been proposed to partially coat the surface of the photocatalytic titanium oxide particles with an inorganic substance such as hydroxyapatite.

[0006]

However, in order to partially coat the surface of the photocatalytic titanium oxide particles with an inorganic substance (or other inorganic substance) such as hydroxyapatite, it is necessary to use an organic material which comes into contact with the photocatalytic titanium oxide particles. Although the degradation can be reduced, the more the degradation of the organic material is reduced, the more the portion where the titanium oxide photocatalyst exerts the oxidizing power is correspondingly reduced. For this reason, partially covering the surface of the photocatalytic titanium oxide particles with an inorganic material has a half merits and demerits and is not necessarily a plus as a whole.

[0007] Under such a background, the present invention effectively prevents the deterioration of the organic material and uses the deodorant and antimicrobial properties sufficiently despite using inorganic particles having a photocatalytic function. It is an object of the present invention to provide a functional material to be exhibited.

[0008]

Means for Solving the Problems One of the functional materials of the present invention comprises a ceramic component (C) and an animal or plant having at least one of deodorant, antimicrobial or antiallergic properties. It is characterized by comprising multicomponent composite particles (BCT) having a structure in which the surface of inorganic particles (T) having a photocatalytic function is partially covered with composite particles (BC) with the active ingredient (B). Things.

Another functional material of the present invention comprises a ceramic component (C) and an active ingredient (B) derived from animals and plants having at least one of deodorant, antimicrobial or antiallergic properties. The composite particles (BCT) having a structure in which the surfaces of the inorganic particles (T) having a photocatalytic function are partially covered by the composite particles (BC) with the target material (O) or / And is contained or / and carried on the surface.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

<Composite Particles (BC)> The composite particles (BC) are composed of a ceramic component (C) and an active component as described below.
(B). As described later, the composite particles (BC) make use of the cohesive force of the cohesive component in the ceramic component (C) to form the ceramic component (C) and the active component.
It is particularly preferred that (B) is compounded.

<Active ingredient (B)> As the active ingredient (B),
An active ingredient derived from animals and plants having at least one of deodorant, antimicrobial and antiallergic properties is used. Here, “deodorant” is used to include deodorizing, odor eliminating, and harmful gas component removing properties, and “antimicrobial” is antibacterial, bactericidal, bacteriostatic, and antifungal. And antiviral properties.

The active ingredient (B) derived from animals and plants is catechin,
It is particularly desirable that it be at least one component selected from the group consisting of saponin, tea extract, tea powder, tannin (acid), chitin, and chitosan. These active ingredients (B)
For example, in the case of antimicrobial properties, for example, the types of effective bacteria and viruses differ depending on the type, so the type of active ingredient (B) is selected according to the purpose, or two or more types of active ingredients ( B) is used together.

As the catechin (including its attribute form), a monomer form or an oligomer form is used (including theaflavin). A particularly important catechin used in the present invention is a tea-derived catechin preparation having an increased catechin concentration. The main components of tea catechin are epigallocatechin, epigallocatechin gallate, epicatechin, epicatechin gallate, etc., but it is not necessary to isolate it into individual components, so it contains tea catechin consisting of a mixture of these richly Formulation (especially containing 20% or more, preferably 25% or more)
Can be suitably used as it is. Commercially available tea-derived catechin preparations include 30%, 50%, 60%, 70%
% Products, 80% products, 90% products, etc., so it is easy to obtain. Since catechin is contained in various plants other than tea, such as Asenyaku, catechins derived from those plants can also be used.

[0015] Saponin can be obtained by extracting a component containing saponin from tea leaves or tea seeds using an organic solvent or water, and then repeatedly performing purification using a means such as column chromatography. Saponin is a variety of plants other than tea,
For example, it is also contained in carrots, carrots, soybeans, psycho, amachadul, loofah, onji, kikyo, senega, bakmondou, mokutsu, timo, gossip, licorice, sankirai and the like. However, tea saponins derived from tea described above are particularly suitable in terms of availability, small amount of contaminants, and dyeing properties. Saponins include steroidal saponins, triterpenoid saponins, and the like.Depending on the type of the starting plant, there are many saponins having a large amount of steroidal saponins and those having a large amount of triterpenoid saponins. Can be used.

Examples of the tea extract or tea powder include powdered teas such as first-, second- and third-numbered teas, powders such as deep-brushed and covered,
Alternatively, these tea extracts, black tea and oolong tea extracts can be used.

As the tannin (acid), a commercially available purified tannic acid can be used, and an extract of a high tannic acid-containing natural plant containing a large amount of tannic acid, such as a quintet or gallic, or a semi-purified product thereof can be used as it is. It can also be used.

As for chitin and chitosan, those having various degrees of acetylation and various molecular weights are commercially available from various companies at present and can be used. Among chitin and chitosan, chitosan is more advantageous in terms of antibacterial properties and ease of complexing with the ceramic component (C).

<Ceramics Component (C)> As the ceramics component (C), various ones may be used as long as they belong to the category of ceramics. Silica gel obtained through hydrous silica gel, inorganic sintering aid A combination of an inorganic coagulant or a combination of ceramic particles, an inorganic sintering aid, and an inorganic coagulant is particularly preferably used. If these are used, the compounding with the active ingredient (B) can be achieved by utilizing the cohesive force.

As the silica gel, silica gel obtained through a hydrous silica gel is preferably used. At this time, the pH is adjusted by mixing an aqueous solution of a silicate with an acid to form a hydrogel, and the hydrogel is washed with water to remove ions, and then dried to obtain silica gel. As the silicate, sodium silicate represented by Na ₂ O · n SiO ₂ and potassium silicate represented by K ₂ O · n SiO ₂ are used, and the former sodium silicate is particularly important. A concentrated aqueous solution of a silicate is generally called a water glass, and a typical commercially available water glass has an SiO ₂ content of 22 to 38% by weight and a Na ₂ O content of 5 to 19% by weight.

As the inorganic sintering aid, phosphoric acid, sulfuric acid,
Polyvalent metal salts of inorganic acids such as nitric acid and carbonic acid (aluminum,
Zinc, magnesium, calcium, manganese, etc.) and alkali metal salts; fluorides and silicofluorides of alkali metals and alkaline earth (class) metals. These are usually used in the form of hydrates or hydrates dissolved in water.
Examples of the alkali metal include lithium, sodium, and potassium, and examples of the alkaline earth (class) metal include magnesium and calcium.

As the inorganic coagulant, a sol-form or solution-type inorganic coagulant, in particular, sol-form silicic anhydride or solution-form silicate (sodium silicate or potassium silicate)
Is preferably used. The sol-form silicic anhydride includes not only ordinary colloidal silica using water as a medium, but also organosilica sol using an organic solvent such as alcohol as a medium.

The ceramic particles in the ceramic particles-inorganic sintering aid-inorganic coagulant include various clay minerals, oxides, hydroxides, composite oxides, nitrides, carbides, silicides, borides, zeolites, and the like. Examples include cristobalite, diatomaceous earth, and polyvalent metal salts of silicic acid.
Examples of clay minerals include kaolin and bentonite. Examples of the oxide include alumina, titania, silica, zirconia, magnesia, and zinc oxide. Examples of the hydroxide include hydroxides of aluminum, zinc, magnesium, calcium, and manganese. An example of a composite oxide is alum. Examples of nitrides are silicon nitride, boron nitride, and the like. Examples of carbides are silicon carbide, boron carbide, and the like. Examples of polyvalent metal salts of silicic acid include aluminum salts, zinc salts, magnesium salts, calcium salts, manganese salts and the like. Examples of the alkali metal salt of silicic acid include a lithium salt, a sodium salt, and a potassium salt.

In the combination of the inorganic sintering aid and the inorganic coagulant, the ratio of each component is 20 to 100 parts by weight of the solid content of the inorganic sintering aid and the inorganic coagulant is 20 to 20 parts by weight.
It is often about 150 parts by weight or more.
In the combination of ceramic particles-inorganic sintering aid-inorganic coagulant, the ceramic particles are mainly used, and the inorganic sintering aid and the inorganic coagulant are used in the amounts that exert their respective functions. Parts, the inorganic sintering aid is about 0.5 to 20 parts by weight in solid content,
The content of the inorganic coagulant is often about 0.5 to 25 parts by weight in solid content. However, these quantitative ratios are not limited to the above range.

It is also preferred that at least a part of the ceramic component (C) is a fluorinated ceramic (C _F ).
As the fluorinated ceramics (C _F ), any fluorinated ceramics (including silicofluoride) or ceramics having an F group can be used. Representative examples of fluorinated ceramics (C _F ) are fluorinated talc or synthetic mica having an F group as described below.

For example, fluorinated talc is obtained by mixing talc with a fluoride such as potassium silicate, sodium silicate or lithium fluoride at a high temperature (for example, 600 to 1000).
(Or about 800 ° C., especially about 800 ° C.). When potassium silicofluoride is used as the fluoride, the fluorinated talc obtained shows non-swelling properties, and when sodium fluoride or lithium fluoride is used as the fluoride, the fluorinated talc shows swelling properties Often.

Synthetic mica having an F group can be prepared, for example, by mixing a mixture of lithium oxide (Li ₂ O), magnesium oxide (MgO), magnesium fluoride (MgF ₂ ), silicon oxide (SiO ₂ ) at a high temperature (for example, 1000 to 1000). At or around 1600 ° C,
(In particular, about 1350 ° C.) and vitrification, and re-heating to, for example, about 1100 ° C. again to precipitate tetrasilicon mica, dispersing the same in an aqueous solution of potassium silicofluoride, and then heating and drying. Can be manufactured. However, various production methods other than this formulation are possible. For example, "I want to know about the science of clay, published by Nikkan Kogyo Shimbun, the first edition of the first edition issued on July 30, 1993."
Pages 146 to 161 describe synthetic mica. "Filler Encyclopedia, Taiseisha Publishing, 199
Synthetic mica is also described on pages 243 to 246 of "May 31, 1st First Edition Issuance".

It is also preferred that a part of the ceramic component (C) is a plate-like mineral having low hardness and cleavage. Representative examples of plate-like minerals having low hardness and cleavability are talc and natural mica. When using ultra fine powder grade,
Pulverization is performed by various means, or only a fine powder portion of the pulverized material is obtained by classification to obtain a material having a particle size as small as possible.

Here, talc is a crushed ore called talc and is a white to gray, slippery, greasy inorganic powder. Talc chemical composition, though somewhat different depending origin, basically represented by _{4SiO 2 · 3MgO · H 2 O} . The crystal structure of talc has a three-layer structure in which silicic acid is formed on the surface, silicic acid is formed on the third layer, and magnesia having a hydroxyl group is formed on the second layer. Due to this unique crystal structure, talc has slippery properties, and has the lowest Mohs hardness of 1 among inorganic minerals.

Examples of natural mica include sericite (sericite), muscovite (muscovite), phlogopite (phlogopite), fluorophlogopite, colored mica in which a coloring element is coordinated in a crystal, titanium mica, and ultraviolet absorbing mica. And so on. Most mica has a Mohs hardness of about 2.5 to 3.2.

Other examples of the ceramic component (C) include clay minerals having a property of swelling by absorbing water, such as sepiolite, vermiculite, bentonite, and the like.
It is also preferable to use sericite clay or the like. Of these, sepiolite having a unique fibrous structure is particularly important.

It is also preferable that a part of the ceramic component (C) is zinc oxide. This is because zinc oxide itself has a deodorizing ability while being a ceramic.

<Composite Particles (BC)> The composite particles (BC) may be in the form of a composite in which: the active ingredient (B) is incorporated between the layers of the ceramic (C); When the production of the compound involves an aggregation step, there are a form in which the active ingredient (B) is mixed between the aggregated particles, and a form in which the active ingredient (B) is coordinated with the ceramic (C). Among these, ceramic components
The form of the composite particles in which the ceramic component (C) and the active component (B) are composited by utilizing the cohesive force of the cohesive component in (C) is particularly important.

When the ceramic component (C) is a silica gel obtained through a hydrous silicate gel, the active ingredient (B) is added before, during or after the mixing of the aqueous silicate solution and the acid and before the completion of the gelling reaction. ) Is added so that the active ingredient (B) is contained in silica gel. By doing so, the ceramics can be agglomerated while containing the active ingredient (B).

The ceramic component (C) is an inorganic sintering aid
In the case of a combination of an inorganic coagulant, it is preferable to coagulate the ceramic while containing the active ingredient (B). For example, the active ingredient (B) is mixed with an aqueous solution of aluminum phosphate as an example of an inorganic sintering aid as a powder or an aqueous solution or an alcohol solution,
When the pH is adjusted to 3 to 4 and a colloidal solution of colloidal silica as an example of an inorganic flocculant is mixed to bring the pH of the system to a neutral level, flocculation occurs. Transfer to a dish and heat-treat until dried in a dryer or electric furnace.

Even when the ceramic component (C) is a combination of ceramic particles, an inorganic sintering aid and an inorganic coagulant, it is preferable to coagulate the ceramic while containing the active ingredient (B). For example, an aqueous solution of aluminum phosphate as an example of an inorganic sintering additive is added to ceramic particles such as aluminum silicate, alumina, and titania so as to have a viscosity similar to that of a stiffening paste, followed by kneading. Mix the component (B) as a powder or as an aqueous solution or alcohol solution (or mix the active ingredient (B) into the ceramic particles and then knead the inorganic sintering aid). When the pH of the system is adjusted to about neutral by adding an aqueous solution of the above and adjusting the pH to 3 to 4 and mixing a colloidal solution of colloidal silica as an example of an inorganic coagulant, coagulation occurs. The aggregate is transferred to a crucible or an evaporating dish and subjected to heat treatment until it is dried in a dryer or an electric furnace.

When at least a part of the ceramic component (C) is a fluorinated ceramic (C _F ), the fluorinated ceramic (C _F ) can be used as an active ingredient (B) in any step of the ceramics production process. It is also preferable to make them coexist and to form a composite.

<Inorganic Particle (T) Having Photocatalytic Function> As the inorganic particle (T) having a photocatalytic function, the X-ray particle diameter is particularly preferably, for example, 100 nm or less, particularly 50 nm or less, and further preferably 20 nm or less. Such ultra-fine titanium oxide particles can be used. A material obtained by modifying the surface of this ultrafine titanium oxide with a metal or a metal compound (zinc, gold, silver, copper, platinum, silicon, iron, or an oxide or hydroxide of these metals) can also be used suitably. . To give an example,
A dispersion of ultrafine titanium oxide, a zinc salt such as zinc chloride, zinc nitrate, and zinc sulfate, and an aqueous solution of an alkaline substance are mixed, and then neutralized to precipitate, washed, and dried to obtain a modified product. Obtainable. In addition, there are anatase type and rutile type in the crystal form of titanium oxide, and the anatase form having excellent photocatalytic function is more preferable. Various other inorganic particles having a photocatalytic action can be used together with or instead of titanium oxide.

<Multicomponent Composite Particles (BCT)> Multicomponent Composite Particles
(BCT) is the above-mentioned ceramic component (C) and active component (B)
And the composite particles (BC) have a structure in which the surface of the inorganic particles (T) having a photocatalytic function is partially covered.

Such a multicomponent composite particle (BCT) can be produced, for example, by the following method.
Various other methods are possible.

(A) The composite particles (BC) are produced in a state where the inorganic particles (T) having a photocatalytic function are mixed with the raw material for producing the composite particles (BC), and then the composite particles (BC) are taken out and dried. Heat treatment method. (B) Ceramic component (C) A ceramic component obtained by mixing and melting inorganic particles (T) having a photocatalytic function with a raw material for production, and then pulverizing the resulting mixture with an active ingredient (B).
(C) A method in which the raw materials are put into an aqueous solution for production, mixed, dried, and then heat-treated as necessary. (C) A method in which the inorganic particles (T) having a photocatalytic function are put into a treatment liquid containing the composite particles (BC), immersed, taken out, dried, and further subjected to a heat treatment if necessary. (D) Inorganic particles having a photocatalytic function by any method
After forming a coating of the ceramic component (C) on the surface of (T), it is treated with a raw material for producing the ceramic component (C) containing the active ingredient (B) (for example, an aqueous solution of colloidal silica or water-soluble silicic acid). Then, a heat treatment is performed to cause cracks in the coating of the ceramic component (C) formed on the surface of the inorganic particles (T) during the heating step, thereby removing the background of the inorganic particles (T). How to expose.

Although the proportion of each component in the multicomponent composite particles (BCT) can be set variously, when the total amount of the composite particles (BC) and the inorganic particles (T) having a photocatalytic function is 100 parts by weight. 10 to 70 parts by weight (particularly 15 to 60 parts by weight) of the composite particles (BC) and inorganic particles having a photocatalytic function
(T) is preferably 90 to 30 parts by weight (particularly 85 to 40 parts by weight). When the ratio of the composite particles (BC) is extremely small, the deterioration of the organic material due to the inorganic particles (T) having a photocatalytic function cannot be sufficiently prevented, while the ratio of the composite particles (BC) is extremely low. When the amount is too large, the reduction of the photocatalytic function by the inorganic particles (T) having the photocatalytic function exceeds the allowable range.

Of the multicomponent composite particles (BCT), the composite particles (B
The proportion of the ceramic component (C) and the active component (B) in the composite component (C) is 99 to 30% by weight (particularly 98 to 40%) when the composite particles (BC) are 100% by weight. Wt.), 1 to 70 wt.% (Particularly 2 to 60 wt.
% By weight). This is because such a range can be balanced for the purpose of the present invention.

<Target material (O)> Multicomponent composite particles (BCT)
Can be used as deodorant or antimicrobial agent in the form of particles, but it is used while contained or / and carried inside or / and on the surface of the target material (O) It is also preferred.

The target material (O) includes a substrate (O ₁ ) or a coating composition (O ₂ ). As the base material (O ₁ ), natural fibers, regenerated fibers, synthetic fibers, semi-synthetic fibers, or fiber products made therefrom, such as raw material fibers (including sheath-core type and bimetal type composite fibers), yarns ( Monofilament, multifilament yarn, spun yarn, woolen yarn, covering yarn, etc.), pile, cotton (cotton) -like material, woven fabric, nonwoven fabric, knitted fabric, flocking fabric, etc. , Blended products, mixed and woven products, mixed and knitted products, aligned products and the like. Examples of the substrate (O ₁ ) include films, sheets, bottles, and various parts. Examples of the coating composition (O ₂ ) include paints, coating agents, inks, adhesives, sealing materials, cosmetics, and the like.

Substrate (O ₁ ) or coating composition (O ₂ )
However, when the resin is a main component or the resin is a film forming component, as the resin, a thermoplastic resin,
A thermosetting resin, a room temperature setting resin, an active energy ray setting resin, and the like can be given. The term “resin” includes not only ordinary synthetic resins but also polymers such as elastomers or rubbers and cellulosic polymers.

When the substrate (O ₁ ) is a resin molded product, the molded product may be an ordinary single molded product, or a core-sheath composed of an inner component X and an outer component Y It may be a joint type or a bimetal joint type composite molded product. In the case of a composite molded product, the resin components of the inner component X and the outer component Y consist of the first resin and the second resin, respectively. The first resin and the second resin may be either the same resin or different resins. Then, an active component (B) and a ceramic component (C) are blended with at least one of the first resin of the inner component X and the second resin of the outer component Y.

As the resin or the first resin and the second resin in the case of a composite molded product, a resin that can be melt-molded or a resin that can be solution-molded or emulsion-molded is used. Note that, as described above, the term “resin” includes polymers such as elastomers and rubbers and cellulosic polymers.

In the case of melt molding, various melt molding methods such as an extrusion molding method, an injection molding method, a compression molding method and a transfer molding method can be employed. Examples of resins that can be melt-molded include polyolefin resins (homopolymers and copolymers of olefins mainly composed of ethylene and propylene, polyolefin thermoplastic elastomers, etc.), and polyamide resins (nylon 6, nylon 66, nylon 6-66). , Nylon 610, nylon 612, nylon 11, nylon 12, nylon 4
6, nylon MXD6, polyamide thermoplastic elastomer, etc.), polyester resin (polyethylene terephthalate, polybutylene terephthalate, polyester thermoplastic elastomer, polylactic acid, etc.), polyvinyl chloride resin, polyvinylidene chloride resin, acrylic resin (Homopolymers and copolymers mainly composed of (meth) acrylate or (meth) acrylonitrile, etc.), polyurethane resins (polyurethane thermoplastic elastomers, etc.),
Polystyrene resin (polystyrene, high impact polystyrene, ABS resin, AS resin, polystyrene thermoplastic elastomer, etc.), polycarbonate resin, polyvinyl chloride resin, ethylene-vinyl alcohol copolymer resin, various heat resistant resins, various high It is a strength resin or the like, and other various melt molding resins can also be used.

Examples of resins that can be subjected to solution molding or emulsion molding include cellulosic polymers (such as viscose rayon, ammonia rayon, acetate, and triacetate), acrylonitrile polymers, polyurethane polymers, polyvinyl alcohol polymers, and polyvinylidene chloride polymers. Examples thereof include polymers and polyvinyl chloride polymers. Certain types of polymers (for example, "Randy CP series" manufactured by Miyoshi Yushi Co., Ltd.) can also be used as the resin referred to herein, since emulsion molding is possible.

<Containing or Carrying Method> The functional material of the present invention is a material in which the above-mentioned multicomponent composite particles (BCT) are contained or / and carried on the inside and / or surface of the target material (O). is there.

(Containment method) When the multicomponent composite particles (BCT) are contained in the target material (O), a forming material for the substrate (O ₁ ) (for example, a forming material in a pellet or granule stage)
Is mixed with multicomponent composite particles (BCT) and then subjected to extrusion or other molding. The blending amount of the multicomponent composite particles (BCT) can be, for example, about 0.1 to 30% by weight. The compounding amount of the active ingredient (B) in the multicomponent composite particles (BCT) can be, for example, about 0.1 to 30% by weight. Ceramics component of multicomponent composite particles (BCT)
The amount of (C) can be, for example, about 0.1 to 60% by weight. A masterbatch having a high concentration of the multi-component composite particles (BCT) may be prepared once, mixed with an appropriate ratio of molding materials for the base material (O ₁ ), and then subjected to molding such as melt molding.

[0053] substrate (O ₁₎ forming raw material for the multiple composite particles (B
When (CT) is blended and used for molding, the active ingredient (B) is not easily lost from the molded product even when the obtained molded product is used in contact with water. For example, there is also an advantage that the functionality is maintained for a relatively long time even in an application where washing is performed occasionally.

If necessary, auxiliary materials such as antioxidants, ultraviolet absorbers, coloring agents, lubricants, antistatic agents, matting agents, fluidity improvers, plasticizers, flame retardants, etc., should be added to the raw materials for molding. Can be attached. In particular, in the case of melt molding, a resin such as an antioxidant and a molding aid effective for improving anti-agglomeration or dispersibility are used together with a stabilizer such as an antioxidant, especially in the case of melt molding. It is also preferable to mix them to ensure uniform dispersion of the internal additives, and to improve the loading of the active ingredient (B), copper salts, iron salts, calcium salts, titanium salts, aluminum salts, silver salts, and tin salts. An appropriate amount of a metal ion source such as a salt, a zinc salt, a chromium salt, and a cobalt salt may be allowed to coexist.

When a filamentous material is obtained, it is often stretched after molding. Although there is no particular limitation on the stretching ratio, if the ratio is too small, the strength tends to be insufficient depending on the application. Therefore, the stretching ratio is usually 3 times or more, especially 4 times or more. The upper limit of the stretching ratio is generally up to about 10 times. It should be noted that stretching is not essential, since there are some applications that do not require stretching. When obtaining a film or sheet, stretching can be performed after molding, if necessary.

In particular, in the case of a composite molded article, if the type of the second resin and the amount of the internal additive are selected or controlled in the outer component Y so that the external component Y has the heat-fusing property, the heat-fusing property can be obtained. Goods can be obtained. For example, when a knitted woven fabric (net, woven fabric, knitted fabric) or nonwoven fabric is manufactured using a core-sheath bonded composite filament or a bimetal bonded film cut into narrow slits, heat fusion is applied. The crossing point of filaments and filaments can be fused to prevent misalignment during practical use or secondary processing, or such a knitted or nonwoven fabric is fixed to a frame by heat fusion can do.

When the target material (O) is a coating composition (O ₂ ), multicomponent composite particles (BCT) may be blended when preparing the coating composition (O ₂ ). Other components constituting the coating composition (O ₂ ) include a film-forming component, a medium,
Additives.

At this time, the proportion of each component in the coating composition (O ₂ ) is, for example, 0.1 to 90% by weight (particularly 1 to 80% by weight) based on the solid content of the multicomponent composite particles (BCT). Often the degree. The ratio of each component in the multi-component composite particle (BCT) is the ratio as described above.

(Supporting Method) When the target material (O) is a substrate (O ₁ ) such as a fiber, the supporting of the multicomponent composite particles (BCT) is as follows.
This is done as follows. The active ingredient (B) and the ceramic component (C) may be used together with the multicomponent composite particles (BCT). Further, as the base material (O ₁ ) at this time, an active component (B), a ceramic component (C), or a composite material (BC) of these and molded therein may be used.

The first loading method uses a binder,
The multicomponent composite particles (BCT) are adhered and supported on the substrate (O ₁ ). The binder may be an organic binder or an inorganic binder. When the multicomponent composite particle (BCT) contains an adhesive component, the component can be used instead of the binder. Carrying can be performed by means such as immersion, coating, spraying and the like.

In the second loading method, the multicomponent composite particles (BCT) are loaded on the substrate (O ₁ ) by a dyeing method (a method similar to dyeing, hereinafter the same). It is particularly desirable that the substrate (O ₁ ) at this time is in the form of a fiber or a fiber product.

In carrying the multicomponent composite particles (BCT) on the base material (O ₁ ) by the dyeing method, auxiliary agents belonging to a carrier agent, a fixing agent, a cationizing agent, a reducing agent, etc., a mordant and the like are used. You may.

The dyeing treatment is carried out in a bath containing the multicomponent composite particles (BCT), auxiliaries, mordants and the like together or separately.
This is done by processing (O ₁ ) simultaneously or sequentially. When the bath treatment is performed in a bath containing the multicomponent composite particles (BCT), the auxiliary agent, the mordant and the like together, the bath treatment can be performed by dividing into two or more baths. When separate baths are used, the order of bath treatment is arbitrary. The bath ratio is 5 to the weight of the base material (O ₁ ).
The bath temperature is about 100-fold, the bath temperature is about 30-140 ° C., and the processing time is often about 10 minutes to 3 hours (particularly about 15 minutes to 2 hours), but is not necessarily limited to this range. When the bath treatment is carried out under a high temperature condition exceeding 100 ° C., the bath treatment is performed under pressure, so that a pressurized closed dyeing machine is usually used. Before the bath treatment, if necessary, the substrate (O ₁ ) (especially fibers or textiles) can be desizing, scouring, bleaching, etc. The base material (O ₁ ) after the bath treatment may be subjected to acid washing, alkali washing,
Or after performing post-processing such as soaping and washing with water,
Air dry or hot air dry.

<Combination of Loading and Loading Method> The above-mentioned loading method and loading method can be combined. For example, the substrate (O ₁₎ to the multiple composite particles (BC
T) is added by internal addition, and the multi-component composite particles (BCT) are supported on the base material (O ₁ ) by adhesion or the like.

<Uses> The above-mentioned functional materials are used for drinking and water supply, pet water, bath water, cooking water, washing water, appreciation fish water, tableware and food cleaning. Water, cleansing water, toilet water, toilet sink water, pool water, ikebana, gardening water, etc., filter materials (air conditioners, air purifiers, vacuum cleaners, etc.) Clean room filters, water purification filters, etc.), fans and molded products around the fans, refrigerator inner wall panels, clothing (clothing, interlining,
Lining, apron, socks, socks, etc.), footwear (shoes, slippers, insoles, etc.), personal belongings (towels, scarves, mufflers, belts, hats, gloves, tablecloths, umbrellas, bags, bags, purses, etc.) ), Daily necessities and kitchen utensils (toothbrush,
Clothes brushes, hair brushes, scourers, dishwashing, rags, fukins, rubs, etc.), medical supplies, welfare-related products, sanitary products, sanitary materials, (surgical gowns, lab coats, bed mats, masks, bandages, gauze, sutures, absorption Materials, wound protection materials, diapers, various sanitary products, etc.), makeup materials (puffs, makeup brushes, etc.), interior products, interior goods, furniture (hot carpets, carpets, curtains, chair upholstery, screen doors, bath mats, etc.) , Indoor interior materials (wall sheets, flooring materials, etc.), various materials (walls) for prevention of sick house syndrome by VOC (volatile organic compounds) such as formalin and acetaldehyde, and prevention of MCS (multiple types of chemical sensitivity) Dressing materials, fiberboards, cloths, etc.), bedding (futon cotton, sheets, duvet covers, blankets, mats, pillowcases, cushions, etc.), sports equipment (sports clothes, etc.), Interior trim (the car for cover sheet, sheet cross, ceiling material, floor material, etc.), bathroom, toiletries, pet supplies, and the like packaging material. Packaging materials (films for food packaging, sheets, bottles, trays, etc., packaging films for home appliances, compost bags), freshness-preserving films and sheets, cushioning materials, shopping bags, garbage bags, wrapping paper, other industrial and consumer products For (tent, conveyor belt, hose,
Rope, hood, canvas, curing sheet, vegetation net / mat / nonwoven fabric, construction net, fishing net, longline, laver net, fishing line, bird net, insect net, animal net, filter cloth, dry canvas for paper machine, Sweats for helmets, attachment brushes for vacuum cleaners, mops, stuffed toys, polishing brushes, sewing thread, mosquito nets, towels, cards, disposable tableware, stationery, sundries, etc.) Agricultural film, simple agricultural covering material, cold gauze, binding Tape, grass bag, grass net, planting net, root sheet,
It is useful for various uses such as nursery beds and pots.

<Function> In the multicomponent composite particles (BCT) of the present invention, as shown in the micrograph of FIG. 1 described below, the surface of the inorganic particles (T) having a photocatalytic function
Composite particles of ceramic component (C) and active ingredient (B) (B
C) has a structure that is covered so that the ground can be seen and covered.

For this reason, even if the multicomponent composite particles (BCT) are mixed with an organic resin and molded, are provided with an organic binder for coating, or are coated on an organic object, the organic material may be used. Is effectively prevented.

The strong oxidizing property of the inorganic particles (T) having a photocatalytic function during light irradiation is maintained, and the active ingredient (B) in the composite particles (BC) on the surface is deodorized even in a dark place. Properties and antimicrobial properties are exhibited.

The deodorant and antimicrobial mechanisms based on the strong oxidizing power based on the inorganic particles (T) and the deodorant based on the inclusion or chemical reaction based on the active ingredient (B) in the composite particles (BC). Sexual and antimicrobial mechanisms are heterogeneous and, as such, provide superior effects to levels and regions that each cannot achieve alone. That is, the deodorant property and the antimicrobial property are enhanced, and the antimicrobial spectrum is broadened.

In addition, inorganic particles having a photocatalytic function
In the case of the composite particles (BC) present on the surface of (T), the active ingredient (B) is compounded with the ceramic component (C). (B) is not easily lost, and the active ingredient (B), which is an organic substance, is protected by the ceramic component (C), so it is unlikely to be strongly oxidized by the inorganic particles (T), and its function is impaired. Never be.

[0071]

The present invention will be further described with reference to the following examples. “Parts” and “%” are expressed on a weight basis.

<Preparation of Active Ingredient (B)> The following were prepared as the active ingredient (B).・ (B ₁ ): Catechin (70% tea catechin) ・ (B ₂ ): Catechin (30% tea catechin) ・ (B ₃ ): Tea saponin with 70% purity ・ (B ₄ ): Green tea powder ・ ( B ₅ ): A powder obtained by drying a hot water extract of green tea. ・ (B ₆ ): Tannic acid with a purity of 85% ・ (B ₇ ): Chitosan

<Production of Multicomponent Composite Particles (BCT)> Production Example 1 Potassium silicate blended in a composition of 35.5% K ₂ O and 64.5% SiO ₂ was used as an example of inorganic particles (T) having a photocatalytic function. At a predetermined ratio (typically, a ratio of 50:50 by weight) into the photocatalyst titanium oxide particles (anatase type), melted at 1350 ° C. × 5 hours, and quenched with water at room temperature. As a result, a mixture of vitrified potassium silicate and non-vitrified titanium oxide was obtained. This was finely pulverized with a ball mill to about 50 to 100 μm. This finely pulverized product is immersed in a 10 to 20% aqueous solution of sodium silicofluoride in which the active ingredient (B) is dissolved,
Then, it dried at 150-250 degreeC. This allows
Multi-component composite particles (BCT) in which the composite particles (BC) of the ceramic component (C) and the active component (B) are coated on the surface of the inorganic particles (T) so that the ground can be seen and dusted. was gotten. FIG. 1 shows a micrograph of the multicomponent composite particle (BCT).

Production Example 2 Photocatalytic titanium oxide particles (anatase type) as an example of inorganic particles (T) having a photocatalytic function and sodium silicate were mixed at a predetermined ratio (typically at a weight ratio of 60:40). ) And baked in a crucible at 800 ° C. for 1 hour. As a result, silica (S
A fired body having iO ₂ ) formed in a layer was obtained.

Next, the active ingredient (B) was converted to colloidal silica,
An aqueous solution of silicic acid such as lithium silicate or sodium silicate, which has been made to have a concentration of 10 to 30%, is brought into contact with the solution.
When dehydrated at 0 to 250 ° C., fine cracks occur in the silica layer formed in a layer on the surface of the titanium oxide particles, and the ceramic component (C) is formed on the surface of the inorganic particles (T).
The multicomponent composite particles (B) coated with the composite particles (BC) of the active ingredient (B) and the active ingredient (B) so that
CT).

According to the above Preparation Example 1 or 2, the active ingredient
By changing the type of (B), the type of ceramic component (C), and the quantitative ratio of each component, the multi-component composite particles (BCT) shown in Table 1
Was manufactured.

[0077]

[Table 1]

<Anti-mold test of multi-composite particles (BCT)>
The multicomponent composite particles (BCT) obtained above were added to an agar medium (using a commercially available modified GAM agar medium) at a concentration of 10% before the agar medium solidified, and kneaded to obtain a sample. For these samples, the effects on the antifungal effect were evaluated for 7 days in a thermo-hygrostat according to JIS Z2911 6.2.2 (wet method).

The mold was prepared from a black mold solution prepared in advance (1).
(00mg / 500cc pure water) 0.5cc
Planted one by one. In order to promote the growth of fungi, the bacteria were kept at 30 ° C. and 95% const. For 7 days in a thermo-hygrostat, and the final results were recorded by photography.

Table 2 shows the conditions and results. No. 0 is a blank, and indicates the case where the agar medium alone was used. This test is data when no special light irradiation is performed except for indoor lighting. (A) Regarding the growth of mold, the presence or absence of mold on the surface of the test specimen after 4 days and after 7 days was visually inspected, and the increase by + and-signs was observed. (B) Mold resistance was determined by the mold occupancy of the test specimen. (C) The meanings of the symbols in the column of mold growth and in the column of mold resistance are as follows. Although the mold resistance “2 to 3” is not a regular evaluation, a mold growth area close to 3 was judged as “2 to 3” although it was included in the evaluation of 2. -Mold growth-: No mold growth is observed. ±: Growth was slightly observed. + → ++++: Mold growth is remarkable in this order. -Mold resistance 1: Mold growth is 1/3 or more of the sample area. 2: Mold growth is within 1/3 of the sample area. 3: No mold growth was observed.

[0081]

[Table 2]

From Table 2, it can be seen that the multicomponent composite particles (BCT) exhibit excellent antifungal properties irrespective of the data when no special light irradiation is performed except for indoor lighting. .

<Antibacterial test of multicomponent composite particles (BCT)> No.1, No.2, No.3 and No.6 multicomponent composite particles (BC)
Using T), the antibacterial properties of each sample were examined under the following conditions. Table 3 shows the results.・ Test item: bacterial count reduction test ・ Test bacterium: Staphylococcus aureus ATC
C 6538P ・ Test method: JIS L 1902 quantitative test (unified test method).・ Test result: Inoculation count [A] 2.5 × 10 ⁴ log A = 4.4 Unprocessed cloth count [B] 1.2 × 10 ⁷ log B = 7.1 (Standard cotton cloth is used for unprocessed cloth) log B-log A = 2.7> 1.5 (Test is valid) Bactericidal activity value = log A-log C Bacteriostatic activity value = log B-log C

[0084]

[Table 3]

From Table 3, it can be seen that the multicomponent composite particles (BCT) exhibit excellent antibacterial properties irrespective of the data when no special light irradiation is performed except for indoor lighting.

<Deodorizing Test and Deterioration Test of Coating Film by Light Irradiation> No. 1, No. 2, No. 3, and No. 6 multi-component composite particles (BCT)
30 parts by weight of a polyurethane resin as a film-forming component (binder component) is added to a dispersion containing 15 parts by weight of a solid content as a solid component and mixed. The mixture is coated on a polyester film, dried and cured. , About 2 thickness
A 0 µm coating was formed. For reference, in No.1,
With respect to the composite particles (No. 1 ') produced by omitting only the addition of catechin (B ₁ ), a coating film containing a polyurethane-based resin as a film-forming component was similarly formed (Experimental Example D-1'). ). Furthermore, a coating film containing a polyurethane-based resin as a film-forming component was formed by adding only the photocatalytic titanium oxide particles (Experimental Example D ").

This film with a coating film is 10 mm × 10 mm
And placed in a 5 liter glass container, closed and sealed. A black light was attached inside the lid. A predetermined amount of ammonia, acetaldehyde, and trimethylamine were injected into the container, and light irradiation was performed in the following pattern. At the start of the experiment and at the end of the experiment (immediately after 6 hours), the headspace gas in the container was collected, and the concentration (unit: PPM) of each odor component was measured. Table 4 shows the results.・ 4 hours each for light and dark: 1 hour after irradiating black light for 1 hour
The operation of placing in a dark place was repeated four times. Light irradiation 4 hours: Light irradiation was continuously performed for 4 hours. -8 hours in a dark place: left for 8 hours in a dark place without performing light irradiation.

Further, the film with the coating film for the deodorizing test was irradiated with black light for a total of 72 hours, and then the coating film layer was peeled off and subjected to a tensile test. ○, □, in order of the deterioration resistance of the coating film
The evaluation was made in four stages of Δ and X. The results are shown in Table 4.

[0089]

[Table 4]  In the coatingNH ₃  CH ₃ CHO N (CH ₂ CH ₃ ) ₃  InferiorityExperimental example (BCT) pattern start end start end start end  Blank-4 hours each for light and dark 55 49 35 30 120 110 ○ Blank-Light irradiation 4 hours 55 49 35 29 120 113 ○Blank-8 hours in dark place 55 50 35 30 120 112 ○  D-1a No.1 4 hours each for light and dark 55 24 35 11 120 62 ○ D-1b No.1 Light irradiation 4 hours 55 30 35 15 120 69 ○D-1c No.1 8 hours in dark place 55 38 35 23 120 86 ○  D-1'a No.1 '4 hours each for light and dark 55 33 35 19 120 82 ○ D-1'b No.1' Light irradiation 4 hours 55 32 35 18 120 82 ○D-1'c No.1 '8 hours in dark place 55 46 35 28 120 107 ○  D "a TiO_Two 4 hours each for light and dark 55 23 35 11 120 66 △ D "b TiO_Two Light irradiation 4hr 55 25 35 12 120 67 △D "c TiO ₂ 8 hours in dark place 55 45 35 28 120 105 △  D-2a No.2 4 hours each for light and dark 55 25 35 12 120 63 ○ D-2b No.2 Light irradiation 4 hours 55 29 35 16 120 69 ○D-2c No.2 8 hours in dark place 55 39 35 25 120 87 ○  D-3a No.3 4 hours each for light and dark 55 25 35 12 120 63 ○ D-3b No.3 Light irradiation 4 hours 55 30 35 15 120 70 ○D-3c No.3 8 hours in dark place 55 39 35 29 120 88 ○  D-6a No.6 4 hours each for light and dark 55 24 35 13 120 64 ○ D-6b No.6 Light irradiation 4 hours 55 30 35 17 120 71 ○D-6c No.6 8 hours in dark place 55 38 35 27 120 88 ○  (Unit is ppm)

From Table 4, it can be seen that the coating film containing the multi-component composite particles (BCT) was exposed to light continuously, intermittently, and left in a dark place. ,
It can be seen that deodorizing properties against various odor components are exhibited. On the other hand, an experimental example using the composite particles (No. 1 ') produced by omitting only the addition of catechin (B ₁ ) in No. 1
The coating film of D-1 'was insufficient in overall effect as compared with Experimental Example D-1, and was particularly insufficient in deodorizing effect in a dark place. Further, in the coating film of Experimental Example D "in which a coating film was formed by adding only the photocatalytic titanium oxide particles, the deodorizing effect in a dark place was insufficient and the coating film was inevitably deteriorated.

<Deodorizing Test and Deterioration Test of Nonwoven Fabric by Light Irradiation> Polypropylene having a melting point of 163 ° C. was used as the first resin (R ₁ ), and polypropylene having a melting point of 128 ° C. was used as the second resin (R ₂ ). R ₂ ) side, No.1, No.2, No.3
Of 10 parts by weight of the multicomponent composite particles (BCT) of 90 parts by weight of the second resin (R ₂ ) (a small amount of an antioxidant and an anti-agglomeration agent (dispersant) are also added), and co-extrusion molding Was done. Co-extrusion is performed by two extruders equipped with a composite die.
The temperature of the outer component (sheath component) Y is about 80 ° C. higher than the melting point of the second resin (R ₂ ), and the temperature of the inner component (core component) X is about 70 ° C. higher than the melting point of the first resin (R ₁ ). Each condition was adopted. The obtained composite filament was drawn to obtain a drawn filament, and then a nonwoven fabric was produced from the drawn filament. For comparison, the multicomponent composite particles (BC
Instead of T), use only the photocatalytic titanium oxide particles as the second resin (R ₂ ).
Coextrusion was performed by blending 10 parts by weight with respect to 90 parts by weight (Experimental Example M ").

The thus obtained nonwoven fabric was 10 mm × 10
It was cut into a size of mm, and a deodorizing test and a deterioration test were performed in the same manner as in the above experimental example. Table 5 shows the results.

[0093]

[Table 5]  In the coatingNH ₃  CH ₃ CHO N (CH ₂ CH ₃ ) ₃  InferiorityExperimental example (BCT) pattern start end start end start end  Blank-4 hours each for light and dark 55 50 35 32 120 114 ○ Blank-Light irradiation 4 hours 55 50 35 33 120 114 ○Blank-8 hours under dark 55 55 35 32 120 115 ○  M-1a No.1 4 hours each for light and dark 55 31 35 14 120 68 ○ M-1b No.1 Light irradiation 4 hours 55 36 35 17 120 77 ○M-1c No.1 8 hours in dark place 55 45 35 26 120 99 ○  M "a TiO_Two 4 hours each for light and dark 55 30 35 15 120 44 △ M "b TiO_Two Light irradiation 4hr 55 35 35 16 120 75 △M "c TiO ₂ 8 hours in dark place 55 50 35 31 120 109 △  M-2a No.2 4 hours each for light and dark 55 30 35 15 120 68 ○ M-2b No.2 Light irradiation 4 hours 55 35 35 18 120 77 ○M-2c No.2 8 hours in dark place 55 45 35 26 120 97 ○  M-3a No.3 4 hours each for light and dark 55 32 35 16 120 69 ○ M-3b No.3 Light irradiation 4 hours 55 37 35 19 120 78 ○M-3c No.3 8 hours in dark place 55 46 35 27 120 99 ○  (Unit is ppm)

[0094] From Table 5, it can be seen that the coating film containing the multi-component composite particles (BCT) was exposed to light continuously, intermittently, and left in a dark place. ,
It can be seen that deodorizing properties against various odor components are exhibited. On the other hand, in the coating film of Experimental Example M "in which only the photocatalytic titanium oxide particles were added to form a coating film, the deodorizing effect in a dark place was insufficient and the deterioration resistance was poor.

[0095]

As described in the section of operation, the functional material of the present invention has the following effects. 1. Even if these multicomponent composite particles (BCT) are blended with organic resin and molded, used for coating with organic binder, or coated on organic objects, the deterioration of those organic materials is effective Is prevented. 2. Inorganic particles having photocatalytic function during light irradiation
The strong oxidizing property of (T) is maintained and the composite particles on the surface
The active ingredient (B) in (BC) exhibits deodorant properties and antimicrobial properties even in a dark place. 3. Mechanism of deodorant and antimicrobial by strong oxidizing power based on inorganic particles (T) and deodorant and antimicrobial by inclusion or chemical reaction based on active ingredient (B) in composite particles (BC) Because the mechanism is heterogeneous,
These provide excellent effects to levels and regions that cannot be achieved by each alone. That is, the deodorant property and the antimicrobial property are enhanced, and the antimicrobial spectrum is broadened. 4. In the case of composite particles (BC) existing on the surface of inorganic particles (T) that have a photocatalytic function, the active ingredient (B) is compounded with the ceramic component (C), so it can be used in contact with water. The active ingredient (B) is not easily lost even if the
, It is unlikely to be subjected to strong oxidizing action by the inorganic particles (T) and its function is not impaired.

[Brief description of the drawings]

FIG. 1 is a microphotograph of a multicomponent composite particle (BCT).

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61L 2/16 A61L 2/16 Z 9/00 9/00 C 9/01 9/01 B H 9/16 9/16 D B01J 35/02 B01J 35/02 J C09D 7/12 C09D 7/12 201/00 201/00 (72) Inventor Takami Yoshida 536 Ryuzenji-cho, Hamamatsu-shi, Shizuoka F-term (reference) 4C058 AA01 BB07 JJ02 JJ30 4C080 AA05 AA07 BB02 BB05 BB08 CC01 HH05 JJ03 KK08 LL02 LL03 LL10 MM02 MM31 MM32 NN02 QQ03 4G069 AA02 AA01 BC01AA18 BA04A BA04B BA15B BA29A BA19CA18B CAA CA 4J038 EA011 HA216 KA08 KA15

Claims (6)

[Claims] A composite particle (B) comprising a ceramic component (C) and an active ingredient (B) derived from animals and plants having at least one of deodorant, antimicrobial or antiallergic properties.
Multicomponent composite particles (BCT) having a structure in which the surface of the inorganic particles (T) having a photocatalytic function is partially covered by (C)
A functional material comprising: 2. The functional material according to claim 1, wherein the inorganic particles (T) having a photocatalytic function are photocatalytic titanium oxide particles. 3. The composite particle (BC) comprises a ceramic component (C).
2. The functional material according to claim 1, wherein the ceramic component (C) and the active component (B) are compounded by utilizing the cohesive force of the cohesive component therein. 4. An animal or plant-derived active ingredient (B) comprising: catechin;
The functional material according to claim 1, which is at least one component selected from the group consisting of saponin, tea extract, tea powder, tannin (acid), chitin and chitosan. 5. Composite particles (B) of a ceramic component (C) and an active ingredient (B) derived from animals and plants having at least one of deodorant, antimicrobial or antiallergic properties.
Multicomponent composite particles (BCT) having a structure in which the surface of the inorganic particles (T) having a photocatalytic function is partially covered by (C)
Is a functional material characterized by being contained or / and carried inside or / and on the surface of the target material (O). 6. The functional material according to claim 5, wherein the target material (O) is a substrate (O ₁ ) or a coating composition (O ₂ ).